Wild and Wonderful: A Spotlight on Endangered Mammals in Britain and Ireland

This blog focusses on forgotten species; those that are extinct, endangered or just urban, small and under-recorded. With climate change, habitat loss and invasive species threatening our native mammals, highlighting their importance is vital in driving their conservation, so we have chosen to spotlight three of the UK’s endangered mammals, discussing their biology and characteristics, current conservation initiatives and what the future might look like for these animals.

Eurasian Beaver (Castor fiber)

A beaver is swimming through a body of water leaving a wake behind it. Only the nose, top of the head and back are visible. It is covered in brown fur, with small brown ears, small dark eyes and a large button nose. — Image by Gertjan van Noord via Flickr

Habitat: Freshwater, particularly streams and rivers near woodland.

Diet: Aquatic plants and grasses during warmer months, tree bark and shoots during winter. Preference for willow, Aspen, Alder and fruit trees.

Conservation Status: Critically endangered in England, endangered in Scotland.

Distribution: Free-range populations in the River Tay, River Otter and Knapdale, Scotland. Enclosed populations in Kent, Essex and the Forest of Dean. As of 2023, Scottish beavers have established 424 territories, housing up to 1,500 individuals.

Breeding: Between December and April. Birth in early summer of up to six kits, sexually mature at two years old.

Description: With distinctive orange, chisel-like teeth and a flat, scaled tail, beavers are instantly recognisable. Similar in size to a medium dog with shorter legs and a rounder body, the fur of a beaver ranges from brown to black. Once widespread in the UK, the Eurasian Beaver was historically persecuted for medicinal and cosmetic purposes. The species was hunted for fur, meat and the oil from its scent glands, resulting in extinction by the 1600’s.

Did you know? High iron content in the enamel of their teeth gives them their distinctive orange colour. This addition provides the teeth the extra strength that is required for felling trees and eating.

Conservation of Eurasian Beavers

Beavers are talented ‘engineers’, able to transform wetland and freshwater environments. Through the alteration and modification of these habitats, beavers can create complex wetlands, ponds and nurture more resilient ecosystems. Their dams provide a natural filtration system for freshwater landscapes and water quality is shown to increase as it passes through dam complexes, helping to reduce diffuse pollution in the area. Through improved water storage, beaver activities can also maintain water flow to drought-ridden landscapes, increasing the habitat’s resilience to climate change related conditions.

A mound of sticks and twigs laid by beavers across a river to create a dam. The trees in the background are yellow and autumnal — Image by Tom Kelly via Flickr

Environments altered by beaver presence host significantly higher diversity compared to those without. Tree felling can shed more light onto aquatic areas, encouraging growth of wetland vegetation. Feeding on larger, fleshy plants can favour smaller, slow-growing species in the surrounding habitat, leading to more abundant, diverse plant communities in the long-term. Species richness and overall abundance of small mammals, amphibians and bird species are also found to be higher in areas close to beaver dams.

After 400–500 years of local extinction, beaver reintroduction has been gathering traction in the UK. There are a number of reintroduction projects trialling their release, including the 2009 Scottish Beaver Trial in Knapdale Forest (which introduced around a dozen beavers to over four hectares of land) and the Devon Beaver Project which introduced one family group to an enclosed area in West Devon. England’s first wild project, The River Otter Beaver Trial, was founded due to the discovery of wild beavers in the region. This 5-year project observed eight family units over 28,700ha and is seeking to demonstrate the effect of beavers on other wildlife, local landscapes, water flow, water quality and local communities. Further reintroductions across the country have established both wild and enclosed populations of this keystone species.

Looking Forward

Reintroduction projects across the UK have been successful. Populations are breeding successfully and have been expanding their territories. However, there is cause for concern with the potential of conflicts to arise over land management. It is likely that, with expansion, there will be human-wildlife conflict with landowners and other stakeholders in the future. The impact of beaver activities on the environment can cause flooding of pasture, risk to crops and the felling of trees can cause harm to livestock and structures. Natural England has advised a paced approach to beaver reintroduction, minimising impacts to land use, infrastructure, livelihoods or environmental features while maximising benefits for the environment.

Water Vole (Arvicola amphibius)

A small brown water vole with a long tail is standing on the edge of a shallow body of water. It is looking to one side, and is surrounded by small plants and foliage. — Image by Peter Trimming via Flickr

Habitat: Grassy banks along slow-moving rivers, canals and streams. Marshes, reedbeds, wet moorland, wetland.

Diet: Grass and waterside vegetation. Wetland plants in spring and summer. Roots, rhizomes, bulbs and bark in autumn and winter. Occasional invertebrates.

Conservation Status: Endangered in England and critically endangered in Wales.

Distribution: Found throughout mainland UK. Absent from Northern Ireland and most offshore islands. Estimated population of 132,000, range and numbers have declined by 94% from historical populations.

Breeding: March–October. Breed in spring, producing up to four litters a year.

Description: A small rat-sized rodent, the Water Vole has chestnut brown hair covering their entire body and tail, with a round nose and nearly hidden ears. This semi-aquatic rodent was historically widespread until the population saw a decline, resulting in nearly 90% reductions by 1998.

Habitat loss, degradation and fragmentation are key drivers of Water Vole declines in the UK. General infrastructure development, along with urbanisation of flood plains, have resulted in extensive loss of habitat for this species. Partnered with loss of vegetation and trampling around freshwater banks from grazing livestock, large areas of freshwater habitat are now unsuitable for voles. The unintended introduction of American Mink (Neovison vison) has also been pivotal in the collapse of Water Vole populations across the UK. Initially brought to England for fur farming, escaped mink have predated heavily on this species.

Conservation of Water Voles

Through grazing activities on grasses and rushes at the water’s edge, Water Voles manipulate their habitats, much like beavers but on a smaller scale. This manipulation can make space for a new community of wildflowers and grasses, attracting a host of invertebrate species to an area. As a valuable prey species, elevating Water Vole populations can support predators in the surrounding environment. Barn Owls (Tyto alba), Otters (Lutra lutra) and Pine Martens (Martes martes) are examples of native predators that would benefit from the repopulation of Water Voles.

A chocolate-brown mink with a patchy white chin and chest is standing behind a small patch of grass staring at the camera. — Image by Ryzhkov Sergey via Wikipedia Commons

A number of regional wildlife trusts have undertaken Water Vole recovery projects to support their repopulation in UK waterways. These typically involve recording and monitoring existing Water Vole activity, habitat enhancement, coordination of mink control, and in some cases, reintroduction of the species: 300 voles in the Yorkshire dales, over 600 in Essex, 200 in Gwent and over 1,000 individuals in Kielder Forest. The Forestry Commission has also pledged to make changes in Kielder Forest; improving the landscape by refraining from planting trees on river edges, providing much-needed habitat. In order to protect Water Vole settlement, the species is protected under the Wildlife and Countryside Act (1981), the UK Biodiversity Framework, and is listed as a priority species on the UK Biodiversity Action Plan.

Looking Forward

Reintroduction efforts across the UK have had mixed results. A period of growth was observed following initial releases in Nottinghamshire, which has now slowed. Overall occupancy from 2006–2018 has declined by 23%. It is thought that the continued pressure of habitat loss and mink predation is preventing populations from settling successfully. Responding to the poor establishment of Water Vole populations, recovery projects are enhancing existing freshwater habitat and building new areas to establish populations. Breeding and release sites will also be created to facilitate the successful reproduction of Water Voles in a safe environment, away from predation. In addition to habitat enhancement, more widespread mink control is also expected.

Pine Marten (Martes martes)

A pine marten is standing on a fallen tree in a green field. It has a long, fluffy tail and its fur is chocolate brown. Under the chin and chest is a creamy yellow colour and it has large pointy ears. — Image by Caroline Legg via Flickr

Habitat: Native woodland, conifer plantations.

Diet: Small mammals, carrion, birds, eggs, fruit and invertebrates.

Conservation Status: Critically endangered in England and Wales, least concern in Scotland.

Distribution: Widespread and relatively common in Ireland. Populations recovering in the Scottish Highlands, some isolated populations in southern Scotland. Populations in northern England and Wales are fragmented and small. Populations estimated at 1,600–8,900 in Britain and Ireland.

Breeding: Mating season is during the summer months. One litter per year, born in March or April. Kits are fully grown at six months and sexually mature by three years old.

Description: Often confused with mink, Weasels or Stoats, the Pine Marten is a fellow member of the Mustelid family. Characterised by its chocolate brown fur and a distinctive, uniquely shaped light-yellow bib around the throat and chest, this elusive species has a long, bushy tail and large, rounded ears. Around the size of a domestic cat, Pine Marten are larger than both Weasels and Stoats and can be distinguished from mink by their chocolate coat.

Pine Marten populations underwent a major decline in the 19th century due to persecution by Victorian gamekeepers on sporting estates. Extensive habitat loss and fragmentation is another factor which contributed to the decline of these species in the UK.

Conservation of Pine Martens

The reintroduction of Pine Martens is favoured by many across the UK. The species is valued for their natural control of the invasive, non-native Grey Squirrel (Sciurus carolinensis), which can account for up to 14% of a Pine Martens diet. This predation allows the native, endangered Red Squirrel (Sciurus vulgaris) to take hold. Eradicating competition from Grey Squirrels, and reducing the risk of the squirrel pox virus, has allowed the Red Squirrel to successfully repopulate areas around Pine Marten territory.

A red squirrel is perched on tree roots looking at the camera. It has bright orange fur. an upright fluffy tail and very fluffy ears. — Pine Marten reintroductions positively impact Red Squirrel populations. Image by Joachim Dobler via Flickr

The Two Moors Pine Marten Project, the South East Pine Marten Restoration Project, Back From the Brink and Martens on the Move are programmes founded to support the expansion of Pine Martens in England. A total of 35 individuals have been relocated from Scotland to the Forest of Dean and the Wye Valley, and further reintroductions are expected to take place on Exmoor and Dartmoor National Parks later this year. Other projects aim to facilitate reintroductions through the enhancement of key habitats (Martens on the Move) or to undertake surveys and monitoring to inform on species distribution (Back from the Brink).

By 2017, around 50 Pine Martens had been relocated to woodland in mid-Wales from their original home in Scotland. The population was radio tracked throughout the first year, which monitored their movement and behaviour. The group have established a viable population, breeding every year since reintroduction.

Looking Forward

The future of Pine Martens in the UK is promising. Monitoring of existing projects shows successful breeding and expansion from Scotland into Northern England. It is expected that more Pine Martens will be released in the Forest of Dean, in addition to an estimated 40 individuals to be released with the Two Moors Restoration Project in autumn 2024. It is hoped that, with further expansion, populations may link with Welsh Pine Martens, boosting connectivity and genetic diversity.

However, as populations continue to expand, there is an increasing risk of conflict. With greater human populations, greater infrastructure, and greater exposure to protected species, concerns may arise among the public. The species are known to find their way into chicken coops and pheasant pens, damaging livestock and causing conflict with local farmers. The Vincent Wildlife Trust, Natural England and NatureScot recommend sufficient Pine Marten monitoring, active engagement and open communication with stakeholders to mitigate potential conflicts before they arise.

For more information on British mammals and their conservation, visit The Mammal Society website.

The Big Butterfly Count: NHBS Staff Results 2024

Each year, Butterfly Conservation urges the public to venture outdoors and record their local lepidoptera populations with the Big Butterfly Count – a UK-wide survey aiming to assess the health of butterflies and day-flying moths. The count involves recording the number and species of butterflies in a chosen area for fifteen minutes and uploading results to their official website.

There are around 130 day-flying macro moths and 59 species of butterfly in the UK. These highly sensitive animals are key indicators of environmental health and play a crucial role in pollination across the country. The latest State of the UK Butterflies report, an assessment on British butterflies, found that the group has declined by 80% since the 1970s. The Big Butterfly Count allows the health and trends of these species to be assessed, improving our understanding of their conservation and threats.

This year’s count took place between Friday 12th July and Sunday 4th August, and the results from nationwide counts can be found on Butterfly Conservation’s interactive map. Over 140,000 counts were taken during this time, recording nearly 1,000,000 butterflies. Gatekeeper (Pyronia tithonus), Meadow Brown (Maniola jurtina), Large White (Pieris brassicae), Small White (Pieris rapae) and Peacock (Aglais io) butterflies were the most recorded species across all data points, accounting for over 670,000 sightings.

This years count revealed the lowest numbers on record, and has led to the announcement of a nationwide ‘butterfly emergency’. On average, seven butterflies and day-flying moths were seen per count, half of last years average. This years count observed significant downward trends in the group, with around 81% of species showing declines, and 600,000 less butterflies recorded than last year (which equates to around a third of 2023’s total observations). 9,000 counts did not record any butterflies, which is the highest number recorded in the history of the count.

We participated in the Big Butterfly Count this year, and are excited to share our results below.

Staff results

Sabine

a brown and orange butterfly sun bathing in a bush — Gatekeeper by Sabine

3 Small White (Pieris rapae)
2 Red Admiral (Vanessa atalanta)
1 Gatekeeper (Pyronia tithonus)
1 Ringlet (Aphantopus hyperantus)

Guy

1 Small Skipper (Thymelicus sylvestris)
2 Green-veined White (Pieris napi)
1 Large White (Pieris brassicae)
7 Gatekeeper (Pyronia tithonus)
8 Meadow Brown (Maniola jurtina)
2 Peacock (Aglais io)
1 Red Admiral (Vanessa atalanta)

Laura

a small butterfly with red patches sits on top of a cluster of small flowers — Red Admiral by Laura

5 x Red Admiral (Vanessa atalanta)
4 x Peacock (Aglais io)
2 x Large White (Pieris brassicae)
1 x Small Copper (Lycaena phlaeas)
1 x Speckled Wood (Pararge aegeria)
1 x Painted Lady (Vanessa cardui)
1 x Comma (Polygonia c-album)

Elle

A creamy white butterfly feeding on a thistle — Image by Steve Byrne via Flickr

3 x Small White (Pieris rapae)

To find out how you can support UK butterfly conservation and to find your local branch, visit the Butterfly Conservation website.

This Week in Biodiversity News – 16th September

Environment

The National Trust has reached a significant nature target a year early. The charity strived to restore 25,000 hectares of crucial habitat across the UK by 2025, including peatland, woodland, wetland, meadow and saltmarsh, and succeeded in doing so in August this year. The restoration comes as a response to climate change and national conservation targets and seeks to expand meadows and woodland to create a connected network for wildlife.

Eighty Water Voles have been released to restore ancient landscapes in Cornwall. Considered ‘ecosystem engineers’ these mammals are known to positively impact soil health and plant diversity through grazing and enhanced nutrient transportation. The voles were released along the River Fowey to improve the surrounding wetland habitat created in 2022. A further 120 have been released near Megavissey, and more releases are planned for spring next year.

A light brown rodent is sat on a river bank underneath grasses, it has small black eyes and a small brown nose — Image by Peter Trimming via Flickr

Three years of restoration work have seen the return of endangered birds in Hertfordshire. Work has come to a close on the Ashridge Estate, the largest woodland maintained by the National Trust – over 24 hectares have been restored by clearing dense areas of plantation, which has allowed more light to reach the ground through the canopy. Greater access to sunlight has improved biodiversity and the availability of food sources, and the clearing will provide suitable conditions for many breeding birds, including Spotted Flycatchers which have been spotted on the estate after several years of absence.

Conservation

Conservationists are relocating Florida’s Queen Conches in a bid to support their reproduction. This iconic mollusc has undergone significant declines in recent years, accelerated by increasing ocean temperatures causing lethargy and infertility for individuals residing in warmer, shallow waters. By relocating these gastropods to deeper, colder waters, researchers are providing new mating opportunities in a more suitable environment. Listed as threatened under the Endangered Species Act, this project is helping to ease reproductive pressures on this species.

A grey badger standing on a bed of grass and clover — Image by Andy Morffew via Flickr

In August, the UK government announced a goal to end all badger culls by the end of this parliamentary run. The news was announced as part of a new scientifically–informed and evidence-based eradication strategy for bovine tuberculosis, which hopes to eradicate the disease by 2038. In the past decade, over 230,000 badgers and 278,000 cattle have been slaughtered, costing the taxpayer over £100m each year. Badgers will instead be vaccinated and released, and a dedicated task force will be formed to ramp up vaccination rates.

Wildlife

Five species of seabird have been added to the UK red list. Arctic Tern, Great Skua, Leach’s Storm Petrel, Common Gull and Great Black Backed Gull have joined the list of species most in need of conservation, following population declines due to a number of pressures including climate change, habitat loss and unsustainable fishing. Over 30% of all British birds are currently on the list including Kittiwakes, Puffins and Arctic Skuas, among others.

A large bird with mottled brown feathers and white patches on the palm of the wing — Image by Kjetil Rimolsronning via Flickr

Researchers have found promise in the medicinal plants used by critically endangered Western Lowland Gorillas in Gabon. The group studied the tropical plants eaten by gorillas in Moukalaba Doudou National Park and found four trees also used by local healers. They are high in antioxidants and antimicrobials, and one tree is a promising candidate for tackling superbugs. All four species (Fromager trees, Fig Tree, African Teak and Giant Yellow Mulberry) show activity against a resistant strain of E. coli and contain chemicals with medicinal effects useful for treating a range of ailments.

The NHBS Guide to Grasshoppers and Bush-crickets

Here in the UK, we have 11 species of grasshopper and 23 species of cricket (around ten of these being bush-crickets), both subfamilies belonging to the order Orthoptera. Although similar in appearance, the two can be separated by their antennae – grasshoppers have short, stout appendages and bush-crickets have longer, thinner antennae. Bush-crickets also have a larger body size than grasshoppers, growing up to 5cm in length, and females have a distinctive ovipositor used to lay eggs.

Here, we look at a few species of grasshoppers and bush-crickets found in the UK, detailing ways to ID them and where they can be found.

Common Field Grasshopper (Chorthippus brunneus)

A brown grasshopper is sat on a small twig, it is dull in colour but has a vibrant yellow-orange abdomen under a darker wing — Image by Gilles San Martin via Flickr

ID Notes: Up to 2.5cm in length. This grasshopper is usually a mottled brown colour, but can vary from brown to grey, orange and purple. It has barring on the sides, and a very hairy underside which is the most straightforward way to identify this species. It is winged and able to fly. Their song consists of short, single chirrups repeated at short intervals.

Distribution: Common and widespread throughout Britain. Common Field Grasshoppers can be seen from May to October on short vegetation in dry, warm days. They can be found in grassy areas including farmland, grassland, heathland, moorland, towns and gardens.

Meadow Grasshopper (Chorthippus parallelus)

A grasshopper on a green stem, it has a vibrant pink head, thorax and back legs. It has a green underbelly and black/yellow striping on its abdomen. Its wings are very short. — Image by Gilles San Martin via Flickr

ID Notes: Up to 2.3cm in length. Meadow Grasshoppers are usually green in colour, with some individuals brown or pink-purple coloured (pictured above). The wings are often brown and are long in males, whereas female wings are short and do not reach the end of the abdomen. This species has distinctive black knees and a dark brown stripe running across the flank to the eye. They are similar in appearance to Common Field Grasshoppers, but lack a hairy underside, which can be used to distinguish them from one another. Their song is a burst of around ten chirrups, making a ‘rrr’ sound.

Distribution: Common and widespread throughout Britain. Meadow Grasshoppers can be seen from April to October in damp pastures with long grass. They can also be found in meadows, grassland, heathland and moorland.

Common Green Grasshopper (Omocestus viridulus)

A green grasshopper is standing on a bed of moss, it is light green in colour with dark brown striping on its abdomen — Image by Billy Lindblom via Flickr

ID Notes: Up to 2.3cm in length. As the name suggests, this species is mostly green in colour, but males can also be olive brown. Lines on the shoulders are incurved and white or cream in colour. Common Green Grasshoppers are winged and can fly, but their wings do not exceed the body’s length. They produce a long, loud ticking song which can last for 20 seconds or more and is reminiscent of a fast-paced freewheeling bicycle.

Distribution: Common and widespread throughout Britain, although a little patchier in the lowlands. This species appears early in spring and can be seen from April to September. It can be found in coarse, moist grass in meadows, woodland rides, hillside pastures and farmland.

Mottled Grasshopper (Myrmeleotettix maculatus)

a brown and green grasshopper. it has small antennae a green head and green patches on the thorax and rear legs. the rest of the body is mottled brown in colour — Image by Frank Vassen via Flickr

ID Notes: Up to 2cm in length. This small grasshopper is most easily identified by its antennae – males’ are club-tipped, and females’ have a thickened tip. The body has several colour variations including green, brown, grey and orange. Their song is a repetitive ‘zrr’ ‘zrr’ sound lasting around ten seconds before stopping abruptly.

Distribution: Widely distributed across the UK, but uncommon. Mottled Grasshoppers can be found from April to October in areas of dry, short grass with access to rocks or bare ground, including grasslands, heathland and old quarries.

Oak Bush Cricket (Meconema thalassinum)

A small, lime green cricket is sat on three leaflets. It has very long, flexible antennae that are trailing off of the leaf and long, yellow legs — Image by Alison Day via Flickr

ID Notes: Up to 1.7cm in length. This species is the UK’s only native, arboreal cricket. It has a slender, lime green body with a yellow-orange or brown strip running along its back. Both sexes are fully winged, with wings reaching the end of the abdomen. Females have a long, upturned ovipositor and males have a pair of shorter, rounded claspers. The males do not produce a song, but instead drum their hind legs on nearby leaves.

Distribution: Common, found in England and Wales. The Oak Bush Cricket is common in the midlands and the south but is absent further north. It can be found in the canopy of mature trees in woods, hedges, garden shrubs and other deciduous trees from June to November.

Dark Bush Cricket (Pholidoptera griseoaptera)

A dark brown cricket is standing on a large leaf. It has very long thin antennae and a curved, pointed spine at the end of its body. Its long rear legs are outstretched, standing on another leaf — Image by Alison Day via Flickr

ID Notes: Up to 2.1cm in length. This species is typically reddish to dark brown, with occasional yellow green through the abdomen and a paler area along the top of the thorax. It has very small forewings and long, hair-like antennae. Females have a large, upcurved ovipositor.

Distribution: Fairly common in central and southern England and Wales, where it can be found in woodland, hedgerows, grassland, farmland, towns and gardens. It can often be spotted in large numbers around bramble patches, where they are basking in the sun.

Roesel’s Bush Cricket (Metrioptera roeselii)

A brown and green cricket with long rear legs and an upturned hook at the end of the abdomen. — Image by Charlie Jackson via Flickr

ID Notes: A short-winged and usually flightless species, Roesel’s Bush Crickets are typically dark brown or yellow in colour, sometimes tinged green. They have a green face, slightly orange legs and a cream-coloured margin to their thorax, with two or three yellow spots on the side. Their monotonous song is recognisable for its long, mechanical sound.

Distribution: Common, found mostly in the southeast of the UK, but currently expanding its range north and west. This species can be found from June to October in rough grassland, scrub, salt marshes and damp meadows.

Great Green Bush Cricket (Tettigonia viridissima)

A large green cricket is resting on a leaf. It has long, slightly yellow legs and its green wings extend further than the abdomen — Image by Gunera via Flickr

ID Notes: This large bush-cricket can easily be distinguished by its size, growing up to 7cm long. It is a vibrant green with an orange-brown stripe running the length of its back. Their wings are typically longer than the abdomen, and females have a long, downward curved ovipositor. This species has a loud, long song which sounds like a high-pitched sewing machine running continuously.

Distribution: Common throughout south England and Wales. It can be found from May to October in scrub, woodland, grassland and heathland, with a preference for light, dry soils.

Further Reading
Grasshoppers of Britain and Western Europe

Paperback | June 2021

The first guide to the 261 species of orthopterans of Britain and western Europe ever published. Features stunning, detailed images and information on the distribution and identification criteria. Includes a CD with over 200 orthopteran songs to aid identification.

Orthoptera and Dermaptera

Paperback | July 2024

A photo-based identification guide covering 28 native breeding species of the UK. This guide is part of FSC’s AIDGAP series (Aids to Identification in Difficult Groups of Animals and Plants), providing accessible identification tools for naturalists over the age of sixteen.

Guide to British Grasshoppers and Allied Insects

Unbound | August 1999

A reliable, fold-out chart with an introduction and a key to British grasshoppers and related insects, ideal for carrying in-field.

The NHBS Guide to UK Centipedes and Millipedes

If you look under logs, stones or through piles of leaf litter, you may find a Myriapod (a type of arthropod with many legs, related to insects and spiders). Although these misunderstood animals may strike fear in some, these invertebrates play a vital role in maintaining our ecosystems. One of their main roles lies in nutrient cycling, where they feed on organic matter and detritus, breaking materials down into a simpler form and thus releasing nutrition back into the soil. They also play an important role, both as predators and prey, in the ecosystem’s food chain and are often celebrated for their effectiveness as a natural biocontrol agent.

The UK has more than 50 species of centipede. This group are generally carnivorous and have around fifteen pairs of legs, with one pair present on each body segment. They have large forcipules, a pair of pincer-like, modified front legs that are used to inject venom into their prey. There are around 65 species of millipede in the UK, which can be distinguished by their shorter, more clubbed antennae, the absence of forcipules and their tendency to have two pairs of legs on most body segments.

Here, we look at a few species of centipede and millipede that can be found in the UK, detailing ways to ID them and where they can be found.

Common Centipede (Lithobius forficatus)

A small orange-brown centipede on a piece of wood, curled up in a c shape — Image by Frank Vassen via Flickr

ID Notes: Also known as the Brown Centipede, Lithobius forficatus is one the largest centipede species in the UK, growing up to 3cm in length. They have long, thin segmented bodies that are a reddish-chestnut brown colour. Each segment has one pair of legs, with 15 pairs in total. They have long antennae and an elongated pair of back legs, giving the illusion of a second pair of antennae at the rear of the body. This species is best identified by thorned projections on the outer edges of the 9th, 11th and 13th segments.

Distribution: Very common and widespread across the UK. This species can be found year-round but is most numerous in spring and autumn. They can be found in a variety of habitats, including woodland, grassland and gardens, and will spend most of the day nesting in soil or sheltered areas under stones, bark or dead wood before emerging at night to hunt for prey.

Stone Centipede (Lithobius microps)

an orangey brown centipede with many legs on a rock — Image by Keith Lugg, the British Myriapod and Isopod Group

ID Notes: Similar in colour to the Common Centipede, Lithobius microps is a ground-dwelling species that is usually chestnut brown in colour, although red and orange varieties can also be found. It is much smaller than its common cousin, reaching around 1cm in length, and its 15 pairs of legs are slightly shorter and paler than those of the Common Centipede.

Distribution: Fairly common in the south of Britain. This fast-moving species can be found year-round in gardens and bare soil in rotting wood and under rocks and stones.

Banded Centipede (Lithobius variegatus)

A brown centipede with striped legs is crawling over a stick on muddy floor, it has many legs and a large head — Image by J. P. Richards, the British Myriapod and Isopod Group

ID Notes: Measuring up to 3cm in length, this small, yellow-brown centipede is easily distinguished by the banding on its legs – these alternate pale and dark, are usually brown in colour and are more obvious on the rear pairs. It has a dark band running centrally along its back and much larger jaws when compared to other Lithobius species.

Distribution: Widespread and common in the UK. It can be found year-round living under stones and decaying plant matter during the day, and is commonly found in garden compost heaps.

Flat-backed Millipede (Polydesmus angustus)

a flat, armoured millipede with many legs and segments walking along muddy ground — Image by J. P. Richards, the British Myriapod and Isopod Group

ID Notes: This millipede grows to around 2.5cm in length, with a width of 4mm. It has a long, flat body with around 20 body segments, each containing between one and two pairs of legs. It is orange-brown in colour and has numerous off-white coloured legs.

Distribution: Widespread and common in the UK. They can be found in almost any environment in which millipedes occur, with frequent sightings in woodland under dead wood and leaf litter.

Striped Millipede (Ommatoiulus sabulosus)

a brown millipede with two orange stripes running down its body on its back. it is walking across a tree stump — Image by S. Rae via Flickr

ID Notes: Up to 3cm in length, this species is one of the largest millipedes found in Britain. It is thick and cylindrical in shape, usually dark brown to black in colour. It has orange coloured stripes running the length of its body on its back, but these can sometimes appear as a series of orange patches.

Distribution: Common and widespread throughout Britain and Ireland. The Striped Millipede can be found year-round in meadows, fields and woodland under leaf litter and logs. It is also known to climb on walls and trees to feed on algae and can be found during the day.

White-legged Snake Millipede (Tachypodoiulus niger)

A curled up black millipede, with paler almost white legs — Image by AJ Cann via Flickr

ID Notes: The White-legged Snake Millipede can grow to around 6cm in length. It is tubular-shaped with a shiny black body and contrasting white legs, of which there are around 100. Immature millipedes are brown, often with pale, longitudinal stripes down the back. It has a pointed telson (legless tail segment) at the end of its body.

Distribution: Common and widespread in the UK. This species can be found year-round in most habitats containing millipedes, including woodland and gardens, or areas with rocks or rotting vegetation to provide cover.

Additional Reading

Atlas of the Centipedes of Britain and Ireland

Paperback | January 2023

A comprehensive atlas of the 55 species of centipede in Britain and Ireland,. tThis guide provides species accounts, distribution maps and detailed colour photographs for easy identification.

Key to the Identification of British Centipedes

Paperback | December 2008

An identification guide from the Field Studies Council AIDGAP series, this book contains keys to the 57 species of centipede found in Britain.

This Week in Biodiversity News – 2nd September

Conservation

Britain’s rarest plant has been rediscovered in Britain for the first time since 2009. Having been declared extinct after a 22 year absence, a single Ghost Orchid was recently discovered by Richard Bate who has spent the last 30 years searching for it, marking the end of the plant’s lengthy absence. The location of this rare specimen will remain concealed to protect the delicate flower from trampling and poaching, while scientists work to protect the orchid from natural predators and grazing animals.

DNA analysis is helping to eradicate the American Mink from East Anglia. This invasive species has been decimating Britain’s Water Vole and seabird populations since the 1970s, and authorities are now utilising DNA technology to manage their population. Using this key technology, the Waterlife Recovery Trust can estimate relatedness between individuals, identify how far animals may have travelled and pinpoint access routes to remove re-entry points, thus eradicating populations within the project area. The trust has successfully cleared East Anglia of this invasive species, and have seen no signs of mink reproduction in the core project area, resulting in a distinct increase in Water Vole presence.

A long, brown mammal is standing on a rock in the river. It has a long tail and its fur is wet — Image by tsaiproject via Flickr

The world’s fish stocks are in a worse state than previously thought. Research suggests that the scientific recommendations informing fisheries policy are too optimistic and that more global fish stocks have collapsed or are overfished than originally estimated. The study suggests that around a third of ‘maximally sustainably fished’ stocks are actually overfished, which can lead to phantom recoveries where declining stocks are thought to be recovering. The study calls for simpler, more conservative stock assessments and management that are quantified based on realistic models.

Wildlife

An RSPB survey has revealed a hotspot for a threatened species. Data collected from April to June across East Yorkshire and Lincolnshire has found 420 breeding pairs of Redshank on the Humber Estuary, a hotspot for these threatened birds. With a total population of 22,000, this environment holds around 2% of the entire population and is now considered a highly important area for this species of conservation concern.

A brown-grey bird with a white belly and throat is standing in the water with one leg. It has a bright orange beak and bright orange legs and feet — Image via Flickr

A network of wildlife charities is calling for the release of beavers across the UK. Following a successful summer of breeding, the trusts have seen an upsurge in kit sightings throughout the UK, sparking a call for further management and strategy surrounding the species. These organisations are calling for the government to produce reintroduction strategies to facilitate their return across the UK and are urging authorities to allow illegally released beavers to remain in their release sites, of which there are over 1,000 in Scotland.

Environment

Countryside river testing reveals pharmaceutical pollution across the UK. Researchers from the University of York tested 54 locations and revealed contamination at 52 sites, with the most common pollutants including antidepressants, antibiotics, antihistamines and diabetes treatments, among others. The study found that rivers in the Peak District were more polluted than samples taken in London, with a total of 29 active pharmaceuticals detected in the region. This discovery marks concerns for antibiotic resistance, human health and concern for the health of freshwater organisms residing in the waterway.

A rocky waterfall surrounded by forest — Image by Victor Tamarit via Flickr

The EU is being sued by the Climate Action Network Europe and the Global Legal Action Network for failing to set adequate climate targets. The lawsuit was formally filed by the NGOs earlier this year, who argue that climate targets for agriculture, waste, transport and small industries have not been substantiated by the best science and are inadequate in scope to allow the EU to meet the goals of the Paris agreement. The last comments have been filed by the NGOs, and an oral hearing is expected to take place in 2025.

Author interview with Stuart Ball and Roger Morris: Hoverflies of Britain and Ireland

Hoverflies of Britain and Ireland is a beautifully illustrated photographic field guide that details the hoverfly species readily available in Great Britain. This revised and updated third edition details 13 additional species and features more than 840 stunning photographs, alongside a host of other improvements to aid reliable identification. As such, this is the most accessible, authoritative and easy-to-use guide available, and a must-read for all entomologists and naturalists alike.

Stuart Ball and Roger Morris have been running the Hoverfly Recording Scheme since 1991 and published the Provisional Atlas of British Hoverflies in 2000. Stuart and Roger both worked as entomologists for the statutory nature conservation agencies, are both active members of the Dipterists Forum, a society that promotes the study of flies, and have subsequently run many hoverfly identification courses prior to their retirement.

We recently had the opportunity to talk to both Stuart and Roger about the book, including how they first became interested in working with hoverflies, where the ‘new species’ that are now detailed in the third edition have come from and more.

Firstly, can you tell us a little about yourselves and your history of working with hoverflies?

In the late 1980s and early 1990s, we worked for the Nature Conservancy Council’s ‘Invertebrate Site Register’ and were active entomologists with a broad interest in flies. Alan Stubbs, our boss at the time, was looking to re-vitalise the Hoverfly Recording Scheme following Philip Entwistle’s retirement and twisted our arms to take it on. The idea was to combine Stuart’s interest in computing and data interpretation, and Roger’s interest in hoverflies, to try to get the scheme back off the ground. At that time there were about two cubic metres of record cards and about 50,000 computerised records. We took the project on, knowing that we would have to computerise those cards, check the existing computerised data and draw in data from numerous other datasets. Little did we realise what it would entail and how it would change our lives! We produced a provisional Atlas in 2000, a second one in 2011 and now have maps available online. Although we are still running the scheme, we do want to see it safely transition to a new generation before we become too long in the tooth!

Volucella zonaria, Britain's biggest hoverfly enjoying the buddleia om the summer sun. — Volucella zonaria by Martin Cooper. via flickr.

You are both involved in organising and managing the database of the Hoverfly Recording Scheme. Can you tell us a little bit about it and why the scheme is important?

We split responsibility – Stuart manages the database and deals with data import and final validation processes, whilst Roger deals with day-to-day contact with recorders, including verification of iRecord data and active engagement via the UK Hoverflies Facebook group. The dataset now comprises over 1.8 million records and is the largest dataset for an insect group, except for Lepidoptera and Odonata. The size of the dataset, combined with the unique ecological significance that arises from their various larval feeding strategies, makes hoverflies an excellent subject for many lines of research. The most obvious one has been interest in pollinators, but there are growing avenues of interest in hoverflies because they are sensitive to climate change and also because they are often highly habitat specific. Scheme data is also used in the triennial ‘State of Nature’ reporting.

There are 13 additional species included in this updated edition. Where have these ‘new’ species come from?

When we started work on the new edition there was scope to expand the book, but obviously much less scope to completely re-organise its structure. The species chosen were mainly included because experience has shown them to feature among the species whose photos are posted online and, therefore, people want to know about them. One big change we have made has been to make sure that all Eristalis species are covered and that we have a key to assist in their identification.

Hoverfly perched on a green plant with seeds. — Hoverfly by nmahieu, via flickr.

The third edition includes a new section on putting data to good use. Why was this important for you?

Our objective from the onset has been to produce a book that is somewhat different from a traditional identification guide. We wanted to make sure that readers thought about both the animal they saw and its larval biology. Moreover, we wanted to encourage high-quality recording. Our background in nature conservation has taught us that the biggest impediment to insect conservation is a lack of reliable data. So, we felt it was necessary to show readers how records might be used and what messages they can convey. The use of models to investigate aspects of wildlife biology and conservation is relatively new, so showing readers that data can be used for a lot more than just ‘dots on maps’ is essential if we are to foster an ongoing high-quality recording community.

Traditionally, hoverfly guides use dichotomous keys as the primary aid for identification. What challenges did you face in producing an identification guide based on photographs and why did you feel that a photographic guide was the right choice for this book?

When we originally developed the book, it was not our intention to replace the existing monographs which include full keys, such as British Hoverflies (Stubbs & Falk 2002), Hoverflies of Northwest Europe (van Veen 2010) and the newer Hoverflies of Britain and North-West Europe (Bot & van de Meutter 2023). Our intention was to produce a companion to these books which illustrated the key features using field photos of live flies and close-up shots of specimens to make the identification process more accessible. The huge growth in records coming from photos posted online meant that we especially wanted to target photographers who wish to put a name to the animals in their pictures. Moreover, had we used traditional keys, the book would have been 400+ pages long and would have been considerably more expensive. Britain’s Hoverflies was quite a brave move for WILDGuides at the time because they had not tackled such a large insect family. The design and the contents had to be marketable, appealing and affordable to people who might not normally buy a book on flies. Coming up with guidance that does not involve keys has been a challenge and we must credit Rob Still for the design inspiration and turning our rough ideas into something workable. Since that first edition, the book has evolved and expanded. It is now a lot bigger, but we have held to our basic belief that it should be complimentary to these other works rather than a replacement.

Syritta pipiens - Thick-legged Hoverfly taking nectar from a small, yellow flower. — Syritta pipiens – Thick-legged Hoverfly by Nikk, via flickr.

This updated edition includes revised maps, flight-period charts and population trends for hoverfly species across Britain. Have you observed any changes in behaviour or distribution in response to developing environmental challenges? And do we have a clear idea of how these insects are likely to be impacted in the future?

All insects are responding to a plethora of environmental changes, but we are in a better position to investigate the challenges facing hoverflies because there is such a big dataset and new data arrives in volumes that we could only have dreamt of 30 years ago. Some species are expanding their range, while for others the frequency with which they are recorded is diminishing and/or their range is contracting. Species that were once at the edge of their European range have moved northwards, some quite dramatically. Several new species have arrived, apparently under their own steam, as their European ranges have expanded, but others have been assisted by lax biosecurity. A few species have disappeared from south-east England or are in the process of doing so.

It might be assumed that the twin evils of habitat loss and agricultural intensification (including pesticides) are primarily responsible for these changes; however, we think that climate change is having a far more profound impact than is currently accepted. Flies have very thin-skinned larvae and are highly susceptible to changes in humidity, so increases in the frequency and intensity of heatwaves and droughts will have a big impact on them. This sensitivity makes them important indicators – they are arguably climate change canaries that help to explain why so much of Britain’s precious biodiversity is disappearing. Flies are at the bottom of the food chain, so if you lose flies there will be fewer insectivorous birds and mammals, let alone predacious invertebrates such as wasps and spiders.

Hoverflies of Britain and Ireland is published by WILDGuides and is available to pre-order from our online bookstore.

The NHBS Guide to Swift Nest Boxes

Alongside House Martins and Swallows, Swifts are losing suitable nesting habitat at an alarming rate. Through changes to roof design and structure, nesting sites are becoming increasingly rare. This has contributed to the widespread decline of this species which has seen them added to the UK Red list.

Swifts return to Britain and Ireland from April, following a lengthy flight from Africa. Before leaving in August, Swifts must mate, lay and incubate their eggs. Nest boxes provide Swift colonies with the perfect site to raise their young – boxes should ideally have a large internal cavity with an elongated entrance hole, either at the bottom or downward facing. Swift nest boxes should be placed under the eaves of a building, on walls at least five metres in height. Since these birds nest in colonies, multiple nest boxes or boxes on neighboring houses are ideal for attracting more Swifts.

Here, we look at a selection of nest boxes suitable for Swifts, highlighting the benefits of each design.

Key materials

Wooden nest boxes are preferred by many. This lightweight material is breathable and provides excellent insulation for nesting birds, helping to protect them from temperature extremes between seasons. Typically used for external boxes, harder wood types provide a fair level of robustness and longevity when at least 15mm thick and help to prevent predator access to the nest. The main drawback of wooden nests is the maintenance they require – they should be monitored to ensure the wood remains in good condition, and care taken in choosing wood treatments as many can be harmful to nesting birds.

WoodStone and Woodcrete are almost identical in composition, but Woodcrete is a patented material by Durisol. The material is made from a blend of wood and concrete to produce long-lasting, very durable boxes which can last for decades. It has good insulative properties and creates a thermally stable environment inside the box to shelter inhabitants from extreme temperatures. This material is offered for both built-in and mounted nest boxes but is more often used for built-in boxes due to its weight, which is heavier than wood or eco-plastic. WoodStone is typically more expensive than other materials and requires thoughtful design to improve ventilation to prevent the buildup of moisture in the nest.

Certain components of a bird box may be made with eco-, or regular, plastic. A low-cost option, plastic is more lightweight than Woodcrete, and provides more longevity than wood. This weather resistant material is easy to maintain and is often sourced from recycled plastics. Nest boxes featuring eco-plastic require careful design to mitigate issues with insulation and ventilation. This material is, however, less durable and provides little resistance to predators or extreme temperatures.

Our Suggestions:

Built in Swift Nest Boxes

Woodcrete/woodstone Swift Nest Boxes

PRO UK Rendered Build-in Swift Box

This built-in box provides Swifts with a thermally stable, secure nesting space. Woodstone is a durable, long-lasting material that is perfect for new builds. Because it is constructed to standard brick dimensions, this nest box can be rendered over to better blend into constructed walls.

Pino Build-in Swift Box

This box provides nesting birds with ample nesting space in a single internal cavity. Woodstone material improves the thermal stability and longevity of the box, while maintaining breathability. This build-in box is also suitable for sparrows, Starlings and other small urban birds.

Wooden Swift Nest Boxes

Soffit and Fascia Swift Box

This built-in box from Unitura is designed to be mounted in eaves and soffits and features a sloped nesting board to allow for mounting at multiple angles. The box has one wood-concrete entrance for extra durability, and a durable plywood box for longevity. This nest box has two nesting bowls to encourage colony nesting.

Concrete/Brick Swift Nest Boxes

Ibstock Eco-habitat for Swifts

Designed to be incorporated into new builds or renovated properties, this Swift brick comes in three colours to ensure discreet placement. Constructed from brick, this box will be durable and will last for many years.

Swift Box – Smooth Brick

Made with insulating concrete, this nesting box provides a long-lasting, discrete, internal nesting space for Swifts. It can last for decades in the right environment. This box can also be bought unfaced, allowing it to be rendered to match the building’s aesthetics.

External

Woodcrete/woodstone Swift Nest Boxes

Vivara Pro Woodstone Swift Nest Box

This robust nest box is constructed entirely of woodstone, ensuring a long-lasting, enduring design and thermal stability throughout the year. A rear entrance provides easy access for cleaning, and a downward facing entrance hole discourages other small garden birds from occupying the nesting space.

Unitura External Swift Box

This nest box has a single cavity for nesting Swifts and an elongated entrance hole. The wood–concrete material ensures a climactically stable, long-lasting environment for generations of Swifts and a sloped roof ensures adequate drainage.

Wooden Swift Nest Boxes

FSC Wooden Swift Box

This robust nest box provides a single compartment for nesting Swifts, with excellent insulation for stability in extreme temperatures. An oval entrance hole and sloping roofs help to exclude Starlings and encourage Swift settlement. Designed to be placed under eaves, the mounting plates and openings are on the sides to allow close-fitting insulation.

Under-eaves Swift Box

Available with left and right-hand side entrances, this box provides nesting Swifts with an underside entrance and landing ramp for easy access. The wood construction is naturally fungal and insect repellent and provides nesting birds with a well-insulated, stable environment.

Kiki Bat and Swift Hybrid Box

A hybrid box designed to house both Swifts and bats, the Kiki nesting box provides a thermally-resistant environment suitable for both groups. The compartment that is allocated for Swift nesting has a forward-facing entrance. The durable, long-lasting design can have a lifespan up to 25 years.

Alternative Swift Nest Boxes

Habi-Sabi Double Swift Box

Constructed with an upcycled material made from recycled waste insulation, this double-chambered swift box is 100% resistant to moisture and has a long lifespan of up to 25 years. It is lightweight and simple to construct, making it a worthy addition to an existing structure. The excellent thermal properties, and downward-facing entrance, make this an attractive nesting choice for visiting Swifts.

Manthorpe Swift Brick

An unobtrusive nest box, the Manthorpe Swift Brick provides nesting birds with a long-lasting, secure nesting site. This nest box is designed to sit inside the insulation cavity of a building, helping to create a thermally stable environment. This brick is available in six colours to blend into existing brickwork.

Accessories for Swift Nest Boxes

Schwegler Swift Nest Mould

Designed to be incorporated into Swift nest boxes or existing cavities, this nest mould provides an appealing base to encourage Swift nesting.

Schwegler Droppings Board

This droppings board prevents the accumulation of droppings from Swift nest boxes around windows and doors. It can be easily assembled and installed using screws and is suitable for use beneath any nest box.

For more information on bird boxes and how to choose them, find our Buyers Guides here.

The NHBS Guide: House Martin and Swallow Nest Boxes

Modern infrastructure has come with a host of changes to roof design, which have impacted the availability of suitable nesting sites for a number of avian species. House Martins and Swallows have been particularly affected by these changes, and we can encourage their colonisation, nesting and breeding through the provision of artificial habitats.

These birds live in colonies of around five nests constructed using spring mud, but in drier springs this can be in short supply. Gathering building materials also requires significant energy expenditure for breeding birds, removing energy available for roosting and raising young. Nest boxes provide a ready–made habitat suitable for nesting without spring mud availability.

Swallows and House Martins require a cup or bowl-shaped nest, with a small, narrow entrance and are generally made of Woodcrete/WoodStone or hard wood. They are typically placed under the external eaves of a building to mimic natural nesting locations and are best placed on a sheltered side at a minimum height of 2m above the ground. Due to their natural nesting habits, House Martin and Swallow nests are designed to be wall mounted. These birds are highly sociable and prefer to nest in colonies, so consider mounting multiple nests to further support natural behaviour.

Here we look at a selection of nest boxes suitable for House Martins and Swallows, highlighting the benefits of each design.

Key materials

WoodStone and Woodcrete are almost identical in composition, but Woodcrete is a patented material by Durisol. The material is made from a blend of wood and concrete to produce long-lasting, very durable boxes which can last for decades. It has good insulative properties and creates a stable environment inside the box to shelter inhabitants from extreme temperatures. This material is offered for both built-in and mounted nest boxes but is more often used for built-in boxes due to its weight, which is heavier than wood or eco-plastic. WoodStone is typically more expensive than other materials and requires thoughtful design to improve ventilation to prevent the buildup of moisture in the nest.

Our Suggestions:

External House Martin Nest Boxes

Woodcrete/Woodstone House Martin Nest Boxes

Manuel House Martin Nest Bowl

The nest bowl is made from wood concrete, ensuring long-lasting durability and a stable interior climate. The chipboard backing ensures easy, lightweight installation.

House Martin Nests

A WoodStone nesting box that ensures breathability, durability and temperature stability for nesting House Martins. The exterior grade plywood backing is lightweight making it easy to install, and is hard-wearing to ensure a long-lasting product.

Vivara Pro WoodStone House Martin Nest

Made with WoodStone, a mixture of FSC certified wood fibres and concrete, this House Martin nest features excellent durability and thermal properties to ensure temperature stability for nesting birds. The backing is also made with WoodStone to increase the durability of the overall unit. Double nest options are also available.

No. 13 Schwegler Modular House Martin Nest

Constructed with Woodcrete, nesting birds will benefit from air permeability and weatherproofing with a low maintenance, long-lasting design. This nest cup is uniquely mounted on a durable backing plate and rails to simplify the installation and cleaning process. Also available in a semi-finished format, allowing House Martins to complete the nest themselves which encourages natural building behaviours.

Alternative House Martin Nest Boxes

Ceramic House Martin Bowl

A ceramic nest bowl mounted on a wooden backing plate. Ceramics provide a breathable nesting area with good thermal properties, whilst providing a plastic-free habitat for breeding birds.

Eco House Martin Nest

The nest cup is made from a resin-concrete mixture, mounted onto a low-density polyethylene (LDPE) backing plate made from recycled plastic waste. A plastic roof and cup drainage holes ensure a dry nest throughout the season.

Wooden House Martin Cup

Made of a mixture of sawdust and cornstarch, this 3D printed nesting cup is fully biodegradable. The result is a durable, weather resistant habitat that is breathable, with adequate insulation for nesting birds.

Accessories for House Martin Nest Boxes

Schwegler Droppings Board for House Martin & Swallow Nests

This droppings board prevents the accumulation of droppings from Swallow and House Martin nest bowls around windows and doors. It can be quickly and easily assembled and installed using screws and is suitable for use beneath any House Martin or Swallow nest box.

For more information on bird boxes and how to choose them, find our Buyers Guides here.

The NHBS Guide to Summer Foraging

Foraging for food is an easy way to connect people of all ages with nature. Some of us may forage unknowingly while picking juicy blackberries in the summer months, and some of us may be unaware of the vast array of edibles around us. Here we have selected a handful of items to forage through spring and summer, highlighting where you can find them and their culinary uses.

It is important to be certain of your identification, so if you are unsure, check all foraged foods with a professional because some plants have toxic look-alikes. Remember to forage responsibly by leaving plenty behind for wildlife and allowing plants to spore or set seed for regeneration.

Wild herbs

Garlic Mustard (Alliaria petiolata)

Garlic Mustard, also known as Hedge Mustard or Jack-by-the-hedge, is a hairy herb in the mustard family. This plant has heart-shaped jagged leaves which emit a distinctive garlic odour when crushed, and has small, white flowers with cross-shaped petals. The species can grow up to 1m in height and can be found in woodland, hedgerows, cultivated land and on the borders of agricultural farmland. Each part of this plant is edible, but harvesting is best between March–April and July–September. Garlic mustard is best enjoyed before flower stalks develop, as this can create a bitter taste. The roots of this plant can be used as a substitute for pepper and horseradish and is said to taste like wasabi. The leaves have a garlicky flavour, and can be used as a replacement for traditional, store-bought garlic.

Wild Garlic (Allium ursinum)

Image by Leonora (Ellie) Enking via Flickr

Wild Garlic (also called ramsons, bear garlic or broad-leaved garlic) is easily identified by its distinctive fragrance. When walking through areas of Wild Garlic, which are often found in large groups, you may catch a whiff of their characteristic garlic smell in the air. These areas are typically damp, shady woodland and can often be found with bluebells close by, as the pair have similar growing conditions. This plant can be seen from late winter till the end of spring, with flowers appearing in April/May. It has distinctive white, star-shaped flowers that grow in clusters. Their leaves are elongated, and when crushed release a pungent smell.

With a milder taste than shop-bought garlic, this plant is suitable for use in pastas, pesto’s and soups and can be infused into oils and vinegars. Only the flowers and leaves are edible, so it is best to leave the root to allow for regrowth – it is also worth noting that younger leaves are better for cooking, as older leaves can create bitter flavours. This plant can be confused with the poisonous Lily-of-the-valley, so it is best to smell the leaves before consuming them – alternatives will not have a distinctive garlic smell.

Wildflowers

Elderflower (Sambucus nigra)

The Black Elder tree, a deciduous species, can grow to six metres in height and is identified by toothed, oval leaves. Each compound leaf has up to seven leaflets, arranged in opposite pairs with a single leaflet at the top. The flowers of this tree, elderflowers, bloom between May and June. Clusters of white, five-petalled flowers appear with prominent yellow stamens, and umbels of dark berries form in late August. Elderflowers can be found growing in a variety of conditions, and are largely non-selective with their environment, which can include hedgerows, woodland, scrubland, grassland and urban green spaces. Elderflowers have a long tradition of culinary use in the UK, using both berries and flowers for different purposes. Preserves, cordials, gins and puddings are all common uses of elderflower. The flowers can be eaten raw, but berries must be cooked before use. Elderflowers have a sweet and zesty taste and an aroma which is slightly lemony.

Dandelion (Taraxacum officinale)

Although there are around 250 species of dandelion, here we refer to them collectively as they are difficult to distinguish from one another.

An instantly recognisable British wildflower, the dandelion features a bright yellow composite flower crown on a bed of large, jagged leaves. These species are very common and widespread, popping up almost everywhere from parks and gardens to roadsides and meadows. The roots, leaves, flowers and buds of the dandelion can be used for food and can be harvested from early spring to late autumn. The roots can be used as a coffee substitute and are famously used in the Dandelion-and-Burdock drink. Leaves can be added to salads and the dandelion flowers are often used in cakes. You can also make beer from the entire plant.

Fruit and berries

Wild Strawberry (Fragaria vesca)

A hairy, perennial herb in the rose family, the Wild Strawberry can be found from May to August. The species is indiscriminate of their growing environment and can be found in a wide range of areas – it is found naturally growing in woodlands, hillsides, meadows, hedgerows and urban green spaces. Wild Strawberries can be identified by serrated, trifoliate (three leaflets) leaves and white, five-petalled flowers with a yellow centre. The berries of a Wild Strawberry appear similar to that of commercial strawberries but are generally smaller and rougher. These edible berries can be foraged from June onwards to make teas, cordials and puddings or can be infused into vinegars and sauces. With a sweet and juicy taste, these fruits can also be used as garnishes or used in salads.

Bramble (Rubus fruticosus)

A sure sign that summer has arrived, the Bramble is an iconic British summertime plant. This perennial shrub can be found up to 3m in height, featuring thorny stems which turn red with age and dark, jagged leaves. Come spring, a Bramble bush will have small groups of white or pale pink flowers with five petals. The fruit of this plant will appear up until autumn, with distinctive black, shiny berries. Ripening from green to purple-black, blackberries have a sweet, tart flavour. They are widespread in the UK and can be found in many habitats including woodland, hedges, fields and urban spaces. It is advised to pick blackberries away from busy roadways and paths to avoid pollutants and other contaminants. Picking from the upper half of the bush is also advised to avoid dog mess. The blackberry is a versatile fruit, with diverse culinary uses. It is commonly used to make jams, jellies and preserves but can also be used to make cordials and fruity teas.

Mushrooms

Chicken of the Woods (Laetiporus sulphureus)

Laetiporus sulphureus, named Chicken of the Woods, is a thick bracket fungus common in the UK. This fungus has bright yellow-orange clusters that fade to cream with age. The average cap can grow to around 45cm in width and is often found growing on the side of trees in broadleaf habitat between June and November. It is mainly found on oak trees, but can also be found on Yews, cherries, Sweet Chestnut and willow. It should be noted that if the fungus is found growing on Yews, or other poisonous trees, the fungus can cause sickness in humans. The firm texture of this fungus makes it a favorable alternative to chicken in vegetarian dishes, as the name suggests. It is often substituted in stews, stir fries, and marinated on skewers. When foraging, it is best to eat younger specimens to avoid a hard, leathery texture associated with older fungi.

Giant Puffball (Calvatia gigantea)

Giant Puffballs are an astonishing sight when found in the wild. Their distinctive white, spherical silhouette can reach up to 90cm in diameter. This fungus has a soft, spongy texture inside, and a thick, velvety texture on the surface. A stemless variety, this plant is found directly on the ground and is often found in small clusters or ‘fairy rings’. As the fungus ages, it becomes browner in colour, compared to the firm, white flesh of young specimens. Giant Puffballs can be found in meadows, open pasture and woodland from July to September. They are widespread in the UK but are localised in habitat. This fungus is popular with vegetarian dishes – its firm, thick texture makes it a great substitute for chicken. It is often pan fried like steak, roasted or breaded and fried.

Additional Reading

Guide to Foraging

Unbound | January 2016

An essential fold-out guide to the 25 most common and tasty plants to forage in Britain and Ireland.

The Foragers Cookbook

Paperback | December 2016

A unique cookbook containing 65 wild food recipes with detailed identification guides to 15 common edible plants.

Concise Foraging Guide

Paperback | May 2021

A waterproof practical pocket guide to 194 edible fruits, nuts, flowers, vegetables and more that can be foraged in the UK and Europe.