Hana Ketley, Author at Hoopoe - A blog by nhbs

The NHBS Guide to UK Heron, Egret and Bittern Identification

Herons are freshwater and coastal birds in the family Ardeidae. We have several resident and migrant heron species in the UK, including bitterns, which are a part of the subfamily Botaurinae, and egrets, which, despite being named differently, are not a biologically distinct group from herons. There are also several similar bird species outside of this family that might make identification difficult, particularly from a distance, such as cranes, ibises and spoonbills. One of the distinctions between these birds and the herons that resemble them is seen in flight; herons fly with their neck retracted, while cranes, ibises and spoonbills fly with them extended.

Many heron species have faced persecution during the 19th and early 20th centuries due to hunting for their plumes, which were used for hat decorations. They’re present on all continents except Antarctica and inhabit a wide variety of habitats, feeding on the margins of water bodies such as lakes, rivers, and the sea.

Herons are medium to large-sized birds that have long necks and legs. To identify individual heron species, look for key features such as size, foot and bill colour, plumage colouration and distribution. However, many species can have different colour morphs and some features of breeding individuals can also change colour. Using equipment such as a scope or a pair of binoculars, as well as a guide covering all colour morphs, can be helpful.

Grey Heron (Ardea cinerea)

Distribution: Widespread
Wingspan: 155–195cm
Bird of Conservation Concern 4 (BoCC4) status: Green
What to look for: This is a tall bird, with grey and black wings, a yellow bill and long, pale legs. They’re a grey-backed species, with a long, white or pale grey long neck and a white head with black eyestripes that extend to long crest feathers. They have dappled black and white plumage on the front of their neck. Grey herons can usually be seen standing very still, either stretched out tall or with their neck retracted, at the edges of water bodies.

Little Egret (Egretta garzetta)

Distribution: Common in the south and east coasts of England and Wales, with their range increasing northwards.
Wingspan: 88–106cm
BoCC4 status: Green
What to look for: The little egret is a white bird with long crest feathers at the back of their head during the breeding season. They have a black bill and legs, and one of their most defining features is their bright yellow feet. Apart from the feet, they are similar to the great white egret but little egrets are more common and smaller, about half the size of the grey heron. They also have featherless ‘lores’, the region between the eye and the bill, which can be pale yellow or greenish. This helps to distinguish them from the much rarer migrant, the snowy egret (Egretta thula), which have bright yellow lores that meet across the top of their beak. Snowy egrets also have yellow along the backs of their legs.

Great White Egret (Ardea alba)

Distribution: Widespread, most common in south-east England and East Anglia.
Wingspan: 131–170cm
BoCC4 status: Not assessed
What to look for: This is a tall bird of similar size to the grey heron, with an all-white plumage. Because of this colouration, they can be confused with the little egret but this species is much larger and lacks the bright yellow feet. They also have a yellow bill, but this becomes mostly black during the breeding season. They have long black legs with paler upperparts that can turn red in breeding birds.

Eurasian Bittern (Botaurus stellaris)

Distribution: Restricted to mainly Norfolk, Suffolk and Lancashire
Wingspan: 100–130cm
BoCC4 status: Amber
What to look for: This bird has a buff-brown coloured plumage with dark bars and streaks. The crown of their head is black, with a buff line above their eye and a dark brown moustache stripe that extends onto the neck. Their bill is yellow and brown, and their legs and feet are a pale green. The males are significantly larger than the females and tend to have more markings, although there is a large variation between individuals.

Eurasian bittern by Michele Lamberti via Flickr

Little Bittern (Ixobrychus minutus)

Distribution: Regular visitors but only two confirmed successful breeding records in Somerset and Yorkshire.
Wingspan: 52–58cm
BoCC4 status: Not assessed
What to look for: The little bittern has a black-green crown, back and tail, with a pale buff underside and wing patches. The sides of their neck are grey and yellow, and they have pale green legs and lores. Their throat is striated with darker brown and paler cream plumage. Their bill can vary from yellow to yellow-green with a brown upper edge.

Cattle Egret (Bubulcus ibis)

Distribution: Becoming more numerous in southern Britain and Ireland.
Wingspan: 88–96cm
BoCC4 status: Not assessed
What to look for: The cattle egret is a white bird that, in the breeding season, has yellowish-buff plumes on its cheeks, throat, back, breast and crown. They have a yellow bill and pale legs, both of which can turn red during the breeding season. Some individuals have also been recorded with grey, melanistic plumages. As their name suggests, they’re often seen with grazing livestock, as they consume ticks and flies from cattle.

Great Blue Heron (Ardea herodias)

Distribution: Very rare, confirmed sightings in the Isles of Scilly.
Wingspan: 167–201cm
BoCC4 status: Not assessed
What to look for: This species is quite similar to the grey heron, although they can be distinguished by the great blue heron’s long, shaggy chest feathers, browner colouration and slightly larger size. There are thought to be two or three forms of this species, although there is a debate as to whether the white coloured population represents a white morph, a subspecies or a separate species. The white morph has a white plumage, orange bill and orange legs. The dark morph is grey with red-brown upper legs and red-brown plumage along the leading edge of their wings, seen best in flight. They have a reddish-grey neck with a pale head and dark crown. They also have a dull grey bill and legs, which both become orange during the start of the breeding season. The third is Würdemann’s heron, an intermediate morph, thought to be the result of a pairing of white and dark morphs. They are paler than the dark morph, with a white crown and crest feathers, but still maintaining the darker patternation on the wings.
Did you know? There are five accepted subspecies of great blue heron: A. h. herodias, A. h. fanini, A. h. wardi, A h. cognata and A. h. Occidentalis (known as the ‘great white heron’), which can all be distinguished by traits such as wing and bill size, overall size and plumage shade.

Great Blue Heron Morphs by Andy Morffew via Flickr

Purple Heron (Ardea purpurea)

Distribution: Rare migrant, with around 20 recorded sightings per year across the UK.
Wingspan: 120–152cm
BoCC4 status: Not assessed
What to look for: This species has a dark grey back, wings and tail. They have a reddish neck with buff-coloured patches and dark longitudinal stripes from their head down to their chest. Their bill is long, with a darker top section. The purple heron also has a black crown that extends in a stipe down the back of their neck and their legs are orange with black stripes. The covert feathers on the bend and underside of their wings are purple, and they also have long, pale feathers hanging down either side of their chest.

Purple heron by Damiano Pappadà via Flickr

The NHBS Introduction to Habitats: Saltmarsh

Foulness Point saltmarsh by Jeremy Halls via Flickr

Saltmarsh, the next habitat in our NHBS Introduction to Habitats series, is an area of the extreme upper shore of sheltered coasts that is inundated with seawater periodically during high tides. However, saltmarshes can also occur further inland, such as along tidal rivers. These habitats are usually angiosperm-dominated areas of vegetation that can develop on a variety of sediment types, including sand and mudflats. They often display striking vegetation zonation patterns across elevational gradients, relating to the degree or frequency of immersion in seawater. This means that, usually, more salt-tolerant species (halophytes) will be found lower down the shore on the seaward side, while less tolerant species would be more likely situated further up on the landward side. These zones are broadly referred to as low marsh and high marsh, but can be further split into an initial intertidal sand- or mudflat, a pioneer zone, lower marsh, middle marsh and the upper marsh zone. These most tolerant species are usually the pioneer species, growing in mud- or sandflats – this marks the beginning of ecological succession in saltmarshes; these plants stabillise the substrate, and add oxygen and other nutrients to the saltmarsh, allowing other plants to establish.

This is a generally well-studied habitat, which is fully classified by the UK National Vegetation Classifications, with 26 types defined. Saltmarshes are made up of a network of creeks and pans (pools), creating sections of land and water. These creeks are developed by the growth of pioneer plant species that grow on raised areas. This concentrates any water flow into channels, which deepen to form creeks as the saltmarsh develops. These areas can be very productive habitats, as the muddy channels can contain sediment rich in decaying matter, supporting a wide diversity of species such as crabs, shrimps and snails, providing food for wading birds and other predators.

What species can you find here?

Flora

Saltmarsh grass (Puccinellia sp.)

Reflexed Saltmarsh-grass – Puccinellia distans subsp. distans by Gertjan van Noord via Flickr

Puccinellia, also known as saltgrass, is a genus of grass that grows in wet environments, often in saline conditions. Some of the saltmarsh grasses within this genus, such as common saltmarsh-grass (Puccinellia maritima), can dominate saltmarsh plant communities, creating dense tufts of hummocks. They can also often be found in pioneer communities, such as in recently disturbed or forming areas of saltmarsh. Some species can grow to quite a height, some between 60cm and 80cm, and provide a refuge for many different animal species.

Annual Sea-blite (Suaeda maritima)

This flowering plant, also known as herbaceous seepweed, is a yellow-green shrub with succulent leaves and green flowers. It grows in aquatic, terrestrial and wetland habitats, but is mainly found in salt marshes and along seashores, reaching up to about 35cm in height. It’s an important habitat-building species, as it captures mud and other sediment, and stabilises the saltmarsh.

Sea Aster (Aster tripolium)

Also known as Tripolium pannonicum, Aster pannonicus or seashore aster, this flowering plant is mainly confined to saltmarshes and estuaries, although it’s occasionally found on cliffs and inland salt works. Sea asters are a short-lived species that can form dense patches. They’re also known as Michaelmas daisies, as their late flowering period is between July and October. Thus, they’re an important source of nectar for several late butterfly species, such as the red admiral.

Sea purslane (Halimione portulacoides)

There are several different species with the common name sea purslane, but this species is a greyish-green shrub found in salt marshes and coastal dunes, usually flooded at high tide. They’re evergreen and contain important nutrients such as zinc and iron. This species can also be used as a bioindicator and biomonitor for mercury contamination in saltmarshes, as it accumulates in the roots and (at lower levels) in the leaves.

This species also has several botanical and common synonyms, including Obione portulacoides, Atriplex portulacoides, purslane orach and lesser shrubby orach.

Fauna

Saltmarshes are important breeding grounds for birds, such as waders and waterfowl, and feeding grounds for overwintering or migrant birds, including wheatear (Oenanthe oenanthe), redstart (Phoenicurus phoenicurus) and goldcrest (Regulus regulus). They also provide nursery sites for many fish species and support a large number of invertebrates.

Saltmarsh Plume (Agdistis bennetii)

Agdistis bennetii by Ben Sale via Flickr

The variety of habitats and conditions within saltmarshes supports a diverse range of invertebrates, including the saltmarsh plume moth. This distinctive species is found in saltmarshes in the south and east of England, with its larvae feeding on species such as sea-lavender (Limonium vulgare) and rock sea-lavender (Limonium binervosum). They feed on the underside of the leaves, hibernating close to the base of the plant until it can restart feeding in spring. Invertebrate species can be used as indicator species for the level of grazing a saltmarsh has undergone. For example, Agdistis bennetii is an indicator species for ungrazed saltmarshes, as they show a significant preference for these areas and are, therefore, more likely to be found in higher numbers than in grazed areas. This is most likely due to the larvae’s reliance on only Limonium species as food plants, which may be reduced or removed with grazing.

Three-spined stickleback (Gasterosteus aculaeatus)

Three-spined stickleback by Gilles San Martin via Flickr

The three-spined stickleback is a small predatory fish that inhabits fresh, salt and brackish water and is very tolerant of changes in salinity. With a preference for slow-moving water with areas of vegetation, it can often be found in ponds, lakes, ditches and marshes. These fish have a brown back with silverish sides and belly. As their name suggests, they have three spines on their back. Males develop bright green flanks and a red throat and belly during spring (as pictured). They hunt invertebrates, including worms, crustaceans, insect larvae and small snails. They’re also prey for several species, including larger fish, such as trout, pike and perch, and birds, such as herons and kingfishers. Eggs, fry and juveniles are also prey for macroinvertebrates, such as dragonfly naiads.

Shore crab (Carcinus maenas)

Shore crabs are found along all shores of Britain and Ireland and inhabit a wide variety of shoreline habitats, from the intertidal zome down to a depth of 60m. They’re especially abundant in salt marshes and estuaries, feeding on algae, plants, arthropods, annelids (worms), molluscs and carrion. They’re also prey for some predatory fish and birds, including gulls, cormorants and certain duck species. Herbivory by certain crab species is thought to be impacting saltmarshes in certain areas. For example, bank die-offs of cordgrass species (Spartina spp.) in the saltmarshes of Cape Cod, Massachusetts has been attributed to the native purple marsh crab (Sesarma reticulatum), as dense populations are leading to intense grazing. Other crabs, however, such as the tunnelling mud crab (Helice crassa) found in New Zealand, are thought to be ecosystem engineers, as their burrows help to transport dissolved oxygen into the surrounding anoxic sediments, helping to promote nitrogen cycling bacteria.

Ragworm (Hediste diversicolor)

Ragworm by Dr Mary Gillham Archive Project via Flickr

Polychaete worms, also known as bristle worms, are a class of annelid worms that are generally found in marine environments. These species have pairs of fleshy protrusions on each segment of their body, resembling legs. Ragworms live in burrows and are widespread and common, often found in coastal or estuarine intertidal zones. They’re a key food source for many species of birds and fish, such as pied avocet (Recurvirostra avosetta), curlew (Numenius arquata), bar-tailed godwit (Limosa lapponica), grey plover (Pluvialis squatarola), common sole (Solea solea) and European plaice (Pleuronectes platessa). These polychaetes have also been found to have deleterious effects on saltmarsh establishment, as well as seagrass meadows. This is thought to be due to ragworms pulling the leaves of cordgrass (Spartina anglica) into their burrows to feed while their burrowing activities is thought to reduce establishment rates due to its disturbance of the substrate.

Mud snail (Hydrobia ulvae)

Hydrobia sp. by Irish Sea conservation via Flickr

This small, spiral-shelled snail is found along the British and Irish coastline. It is typically found in muddy sand, estuaries and saltmarshes, although it also occurs in lagoons and seagrass beds. Also referred to as Peringia ulvae or the laver spire shell, this species is most common in the upper half of the intertidal zone, feeding on detritus, microflora and seaweeds. They can be quite abundant across saltmarshes, therefore providing a major food source for multiple predators, including flatfish, such as common dab (Limanda limanda), and overwintering waterfowl, such as shelducks (Tadorna tadorna).

Overwintering birds

Bar-tailed godwit (*Limosa lapponica*) by Laurie Boyle via Flickr

Saltmarshes are key habitats for many ducks, geese and waders, including the bar-tailed godwit (Limosa lapponica). While some non-breeding individuals can be seen in the UK in summer, the highest numbers generally occur between November and February. They use their long bills and legs to pick their way through estuaries, mudflats, sandy shores, saltmarshes and other wetland habitats, mainly eating worms, shellfish, marine snails and shrimps. For more information on the other birds that utilise these habitats, check out our identification guides on UK ducks, geese and waders.

Several mammal and reptile species also utilise saltmarshes, such as Sika deer, adders, otters and stoats. Check out our identification guides for UK Deer, Reptile and Mustelid species for more detailed information about these.

Threats

The main threats to multiple coastal habitats are erosion, pollution, climate change and development. Sea level rise, combined with development, can cause a coastal squeeze – where saltmarsh habitats are unable to ‘move’ in response to changing tide levels, therefore they’re ‘squeezed’ between the rising sea and developed areas, such as where coastal defences have been built. Many coastal habitats are low-lying and are therefore vulnerable to flooding and are where flood defences are most likely to be placed. Aside from contributing to the coastal squeeze, this changes the relationship between the land and the sea, impeding natural inundation and sediment supply and the dynamics necessary to maintain the saltmarsh habitats.

Erosion from wave action, adverse weather, disturbance, farming and grazing can lead to a reduction in stabilising plants and the rich substrate to be washed away. This reduces the habitats ability to support its diverse wildlife and reduces its suitability as a breeding ground for birds. However, carefully managed, low-intensity grazing can maintain saltmarshes, as it increases vegetation patchiness, reduces succession by woody species and, therefore, increases biodiversity.

Development, such as urban development, ports, harbours and land-claim for agriculture and industry, can threaten these habitats, although this is far less common now. Other threats include pollution, through run-off, litter, oil, heavy metals, air pollution and plastic pollution; invasive species, such as Spartina anglica (cordgrass), which can outcompete native plant species and dominate habitats; and overfishing, which can reduce top predators, leading to a collapse in saltmarsh ecosystems.

Hopes for the future

Protecting the remaining saltmarsh habitats, as well as restoring and creating new habitat areas, is an important part of conserving and increasing our biodiversity. Conservation often involves livestock grazing, site management, conservation designations, strict development planning policies, scientifically informed fishing quotas and public campaigns for litter picking, personal responsibility and reducing foot traffic on degraded areas. Restoration efforts usually focus on removing sea defences to restore the natural tidal influences such as inundation, removing invasive species and planting pioneer species to aid the return of natural saltmarsh communities. However, habitat restoration is a difficult and expensive process, and it can take many years to establish. They also may not always be successful, therefore the monitoring and study of saltmarshes are often a key part of restoration projects.

Areas of significance

Barnaby’s Sands and Burrows Marsh Nature Reserve, in Lancashire, which contains an extensive area of ungrazed saltmarsh.

Welwick Saltmarsh, East Riding of Yorkshire, is a sizable area of saltmarsh habitat on the bank of the River Humber, which hosts thousands of wading birds, as well as raptors and owls.

South Efford Marsh, a nature reserve in Devon, includes a patchwork of saltmarshes and grazing fields next to the River Avon.

Rye Harbour Nature Reserve, East Sussex, consists of a mosaic of coastal habitats including saltmarshes, shingle ridges, scrub and woodland.

Fingringhoe Wick, Essex, is a Site of Special Scientific Interest that hosts up to 200 species of birds and 350 species of flowering plants.

West Williamston, is a reserve in Wales made up of tidal creeks, saltmarsh, muddy shores, limestone rock outcrops and woodland. This site is frequented by a large number of waders and waterfowl, including little grebe, shelduck and curlew, as well as other birds such as tawny owl and wren.

Solway Firth is mostly tidal rivers, estuaries, mud and sand flats and lagoons, but there are also salt marshes, salt pastures and steppes. The saltmarshes of Solway Firth stretch along the coast of north Cumbria as well as crossing the border into Scotland. Over 70% of Scottish saltmarshes are within SSSIs.

The NHBS Guide to UK Chat and Flycatcher Identification

Chats and flycatchers are birds in the Old World flycatcher family, the Muscicapidae. They are small passerine birds and are mainly insectivores. Chats (subfamily Saxicolinae) were originally included in the thrush family, Turdidae, but were reclassified after genetic analysis. Several chats and flycatchers have a number of subspecies, although the classification of these species is often contested.

This family contains many well-known species, such as the nightingale and the robin, which have important cultural connections and have inspired many songs, fairy tales, artworks and poetry. The nightingale’s song has been an important symbol for many poets and writers, often depicted as a mournful lament. The robin has featured prominently in British folklore for centuries, with a strong association with Christmas beginning in the mid-19th century. In both the 1960s and 2015, the robin was voted as the unofficial national bird of the UK.

Many of the birds on this list are striking examples of our wildlife but some now face a serious threat of extinction in the UK. Several have been listed on the birds of conservation concern 4 (BoCC4) red list, such as the pied flycatcher and whinchat, due to their severe population declines. These declines have been attributed to several different threats, including agricultural intensification, climate change and nest failures caused by mowing.

Nightingale (Luscinia megarhynchos)

Distribution: Summer migrant, visiting between April to July/August, Found mainly in the south east, east of England, south west and areas of the east and west Midlands.
BoCC4 status: Red
What to look for: The nightingale is a brown species, with a paler throat and underside and a reddish tail. They have pale, pinkish legs and a small beak that is yellow and grey.
Did you know? There are three accepted subspecies, the western nightingale (L. m. megarhynchos), which visits the UK, and the caucasian (L. m. africana) and eastern nightingale (L. m. golzii).

Black redstart (Phoenicurus ochruros)

Distribution: Rare. During the summer, they’re found mainly in Greater London, Birmingham and the Black Country, with scattered pairs in Liverpool, Manchester and along the south coast between Suffolk and Dorset. During the autumn and winter months, they can be found along the south coast and areas of Wales and Scotland.
Birds of Conservation Concern 4 (BoCC4) status: Red
What to look for: This species is a similar size to the robin. Males are grey-black with a red tail, dark brown wings and a dark black face. Its underside is lighter and it has paler fringes on its secondary feathers, forming a whitish panel. Females are browner and lighter, with the same red tail. They have darker wingtips and a black beak.
Did you know? There are several subspecies of the black redstart, with different authorities accepting between five to seven subspecies, generally separated into three major groups according to DNA sequencing, biogeography and morphology. The subspecies that visits the UK is P. o. Gibraltariensis, one of the two European subspecies.

(Common) Redstart (Phoenicurus phoenicurus)

Distribution: A summer migrant, found in the north and west of the UK, with the greatest concentrations in Wales.
BoCC4 status: Amber
What to look for: The redstart has a distinctive bright orange-red tail. Males are black and grey with a red underside and black legs. Their face is black and their crown is grey, with a white patch across the forehead. Females are duller, with a greyish-brown colouration but still have red tail feathers.
Did you know? There are two subspecies accepted for this species. The one that migrates to the UK is P. p. Phoenicurus, the other subspecies, P. p. samamisicus, is found in the Crimean Peninsula, Turkey, the Middle East and parts of Central Asia.

Stonechat (Saxicola rubicola)

Distribution: Present across much of Scotland and Wales, parts of Northern Ireland and parts of England, particularly the south coast and the east of England.
BoCC4 status: Green
What to look for: During the summer, males have a black head with white patches on either side of their throat, a rust-red breast, streaked dark brown wings and a pale underside. During the winter, they are brown with a rust-brown breast. Females resemble the male winter form, although they are a lighter brown with a whitish throat.
Did you know? There are two currently recognised subspecies, S. r. hibernans (present in the UK) and S. r. rubicola. S. r hibernans is the darker subspecies, with less white than S. r. rubicola.

(Northern) Wheatear (Oenanthe oenanthe)

Distribution: Much of Scotland, Wales, Ireland and northern England, as well as parts of the coasts of south east and south west England.
BoCC4 status: Green
What to look for: The males have a blue-grey upperside, black wings and a white underside, with an orange breast and throat. They have a black mask, edged above and below with white. Females are brown, with dark wingtips and an orange breast and throat, with no black mask. Both have a white rump and tail, with a black T-shape on their white tail. Immature and non-breeding birds lack the contrasting black wings and are buff coloured.
Did you know? There are four accepted subspecies, two of which have been recorded in the UK, O. o. oenanthe and O. o. leucorhoa.

Whinchat (Saxicola rubetra)

Distribution: Summer migrants to Scotland, Wales and the north and north east of England. They can be found in other areas during their migration, such as parts of the south west and Ireland.
BoCC4 status: Red
What to look for: This species has a pale eyestripe, dark cheek and crown, and a pale chin. The males have a streaky brown upperside, with a buff-orange breast and throat during the breeding season, but females are paler. Male whinchats have a dark tail with a white underside, while females have a paler tail with a white underside.

Bluethroat (Luscinia svecica)

Distribution: This is a rare species and can be seen on passage between May to June and August to October, usually along the east coast of the UK.
BoCC4 status: Not assessed
What to look for: Two subspecies visit the UK, the red-spotted bluethroat (L. s. svecica) and the rarer white-spotted bluethroat (L. s. cyanecula). Both species have grey upperparts and white underparts, with a chestnut-coloured patch under their tail. The males have a bright blue patch on their throats, which is where the two subspecies differ. The white-spotted bluethroat has a patch of white on its throat within the blue patch, whereas the red-spotted bluethroat has a chestnut coloured patch. Under this patch on both subspecies is a half-moon of black and another of chestnut feathers. The beak is black, with yellow colouration on the inside and a yellow gape flange, the area where the upper and lower mandibles of the beak join together at the base.

(White-spotted) Gertjan van Noord via Flickr

Pied Flycatcher (Ficedula hypoleuca)

Distribution: A summer migrant present in Wales, the north west of England, and parts of the south west and Scotland.
BoCC4 status: Red
What to look for: Male pied flycatchers have a mostly black upperside and white underside, with a white patch on the folded wing. Females and non-breeding males are browner, with a brownish chest and a less bold white wing patch. They have a black beak, and breeding males have a small white patch above it.
Did you know? There are four recognised subspecies, F. h. hypoleuca is the subspecies that visits the UK but there is some suggestion that F. h. tomensis (formally F. h. sibirica) has also been recorded in Britain.

Spotted Flycatcher (Muscicapa striata)

Distribution: Widespread across the UK between April to August/September.
BoCC4 status: Red
What to look for: The spotted flycatcher is a streaked grey-ish brown species, with a pale underside and a streaked breast and crown. They have a dark beak and legs and are a similar size to a house sparrow (Passer domesticus).
Did you know? There are five recognised subspecies of spotted flycatcher. The subspecies that migrates to the UK is M. s. Striata.

Robin (Erithacus rubecula)

Distribution: Widespread across the UK.
BoCC4 status: Green
What to look for: This well-known bird has brown upperparts, a brown crown and a red face and breast. It has a pale underside and a grey stripe from its eye to its side, between its brown and red plumage.
Did you know? There are multiple subspecies of the robin, although the exact number is contested. E. r. melophilus is endemic to the UK and there is some suggestion that E. r. rubecula, the western European subspecies, has also been recorded here.

This Week in Biodiversity News – 17th January 2022

Loss of animal biodiversity is impacting the survivability of some plants. Species that rely on animal-facilitated dispersal are unable to keep up with climate change as they cannot disperse their seeds far enough to shift their geographic ranges, due to the decline in biodiversity of birds and mammals. Published in Science, a new study has shown that 60% fewer seeds are being dispersed far enough to reach newly suitable habitats, with North America, Europe, South America and Australia the most affected.

A number of environmental organisations, including Wildlife Trust and the RSPB are warning that permitted use of the banned pesticide thiamethoxam by sugar beet farmers threatens bees. The Government has announced that it will permit the use of thiamethoxam on sugar beet in England in 2022, because of the threat posed by a virus, transmitted by aphids. Neonicotinoids are banned within the UK and the EU, as even small traces of these chemicals can reduce bees’ ability to forage and navigate, threatening whole colonies.

Norway has blown up a dam that blocked the Tromsa River for more than 100 years to free up migratory routes for fish. The dam has not been used for over 50 years and the river, which feeds into Norway’s biggest lake, will allow fish in the area to thrive, including grayling, Alpine bullhead and common minnows. Prior to this, the fish were only able to live and spawn in 950 metres of the river. Now that the dam has been removed, these species will be able to swim 10km upriver.

A new study suggests that the sixth mass extinction is currently underway. The planet has undergone five major extinction events but, according to the study published in Biological Reviews, the current one is entirely caused by human activities. Since the year 1500, between 7.5% and 13% of 2 million known species could have already been lost, with drastically increasing rates of species extinctions and declining abundances. However, a bias towards evaluating birds and mammals and an under-reporting of other fauna such as invertebrates may be leading to many denials that the current rate of species die-offs amounts to a mass extinction.

NHBS In the Field – Elekon Batlogger M2

The Elekon Batlogger M2 is a sophisticated bat detector, designed for use in active transect surveys and bat walks. The detector is ergonomically designed and compact in its build. Unlike the Batlogger M, the replaceable microphone is set back within the casing, reducing the chance of breakages if accidentally dropped.

It is an easy-to-use detector, able to record ultrasonic calls over a wide range of 10-192Hz, retaining details of the harmonic structure and amplitude of the original bat call.

This detector also includes features for real-time heterodyne monitoring scheduled recording and several preset recording modes for typical survey types, including ‘Explore’, ‘Transect’ and ‘Passive’. There is also an option to create your own presets, with all settings accessible directly on the Batlogger M2.

The recordings can be easily and quickly managed and analysed using the free BatExplorer Software for Windows. This software also includes computer-aided species identification.

How we tested

In August 2021, we tested the Batlogger M2 on Dartmoor in South Devon at dusk. We chose an area with both open moorland and woodland to monitor the dusk emergence of several bat species. Using the ‘Explore’ recording mode, the device was set to real-time heterodyne monitoring, with the trigger settings selected to 45Hz.

The recordings were stored on a 16GB MicroSD card, output via WAV and XML. The files can be easily transferred to your computer with the included cables (a USB-C to USB-C cable and a USB-C to USB-A adapter) however, we simply used an SD card reader to access and transfer our recordings.

Elekon’s ‘BatExplorer Lite’ software was used to visualise and analyse our recordings.

What we found

At only 222g, this device is lightweight, therefore it was not a hindrance when hiking to the site. It was easy to hold and operate in low light, which is important as it will often be used in conjunction with other equipment while undertaking surveys. However, the buttons do not light up or glow in the dark, therefore it is important to familiarise yourself with the setup beforehand.

Our survey used the ‘Explore’ recording mode however, we looked briefly at the other preset modes and felt they would be very useful if carrying out these types of surveys. In particular, the ‘Transect’ mode allows you to pre-program the detector with your own GPS survey route, which will then display directions to keep you on path.

Setting up our recording session was quick and easy. When triggered, the detector automatically recorded the calls in full-spectrum, therefore no further operation was required. Each recording logs the GPS location, temperature, humidity and brightness at the time of recording, so there is no need to bring separate equipment for these parameters. The device also has an integrated voice microphone to enable you to take time-stamped voice notes while surveying, which allows for more accurate note-taking than writing in the dark.

The screen display was bright and easy to view in the dark. The main screen shows the current recording time and frequency, as well as amplitude and harmonic structure of the previous bat call, the time since the last sequence and the species suggestion for that recording. The other recorded information can be accessed by pressing the left and right buttons to switch screen displays, allowing for an uncluttered screen and fewer distractions.

We tested the detector’s audio output with both earphones and through the built-in speakers (includes an adjustable volume). Both had clear audio with little background noise.

We recorded multiple calls including over 60 calls during one 30 minute survey. We were impressed with the quality of the recordings and the lack of ambient noise assisted in the identification of calls. It is worth noting that the M2 uses a SiSonic microphone, whereas the older Batlogger M uses an FG Knowles microphone, so experienced Batlogger M users may notice a slight difference in their recordings.

Automatic species identification was not always to species level, with some recordings having no suggested species. Those that were suggested, however, appeared mostly accurate when we analysed the recordings via the BatExplorer software.

Our opinion

The Batlogger M2 by Elekon is a very easy-to-use and accessible detector. The preset recording modes are useful for almost all circumstances and allow quick survey set up without the need to trawl through complicated settings – particularly helpful for newer ecologists. The only limitation we found was the lack of visual aids for the buttons in the dark, however, this can be easily overcome by familiarisation and repeated use.

It is clear from the design of the M2 that Elekon has acted on feedback from the Batlogger M and have created an intuitive detector with a robust build, perfect for any survey needs.

The Elekon Batlogger M2 can be found here. Our full range of active bat detectors can be found here.

If you have any questions about our range or would like some advice on the right product for you then please contact us via email at customer.services@nhbs.com or phone on 01803 865913.

Edward O. Wilson and Thomas Lovejoy Obituary

Edward O. Wilson 1929–2021 and Thomas Lovejoy 1941–2021

We have recently received the sad news of the passing of Edward O. Wilson, a biologist, naturalist and Pulitzer Prize-winning author, who died aged 92 and Thomas Lovejoy, a leading extinction researcher and conservation biologist who popularised the term ‘biological diversity’, who died at age 80. These two pioneering conservationists were instrumental in establishing the field of conservation biology and continued to contribute to conservation and research throughout their long careers.

Edward O. Wilson began his interest in natural history from an early age, undertaking his first expeditions at age 9 around the Rock Creek Park in Washington, DC. He earned his BS and MS degrees in biology at the University of Alabama before transferring to Harvard University to complete his PhD.

Wilson was referred to by some as the ‘father of biodiversity’ and ‘a modern Charles Darwin’, praised for his influence as a theorist and observer. He began his career as an ant taxonomist between 1956 and 1996, working to understand their microevolutions and developing the theory of a ‘taxon cycle’. While appointed to the Harvard Society of Fellows, he spent many years travelling, embarking on several overseas expeditions to research and collect ant species in Cuba, Mexico, Australia, Fiji and Sri Lanka, amongst other places. Wilson has been credited with the discovery and description of more than 400 species of ants. Later in life, he led a number of scientific expeditions to Mozambique, the southwest Pacific and the archipelagos of Vanuatu.

Wilson was also an accomplished author, publishing many titles including On Human Nature (1979), which won him his first Pulitzer Prize; The Ants (1990), for which he won his second Pulitzer Prize; his autobiography Naturalist (1994); The Diversity of Life (2012); Letters to a Young Scientist (2014); and his most recent book, Tales from the Ant World (2021). Wilson also played a key role in the launch of the Encyclopedia of Life (EOL) initiative, which aimed to create a global database on all scientifically recognised species.

He was also known for his campaigning, arguing that humans have a moral duty to value species for not only their own sake, but also for future human generations. His work in extinction research informed much of his activism, leading to his advocating for forest protection and the setting aside of 50% of the earth’s surface for wildlife to thrive in, known as the Half-Earth concept. During his long career, Wilson was awarded a number of scientific and conservation honours, including the National Medal of Science (1977), the ECI Prize (1987), the International Prize for Biology (1993), Carl Sagan Award for Public Understanding of Science (1994), the Nierenberg Prize (2001) and the Kew International Medal (2014), as well as being recognised as one of Time Magazine‘s 25 Most Influential People in America in 1995.

E. O. Wilson, 16th October 2007 by Sage Ross via Flickr

Edward O. Wilson: 10th June 1929–26th December 2021

Thomas Lovejoy introduced the term ‘biological diversity’ to the scientific community in the 1980s, as well as helping to establish the concept and study of conservation biology, by convening ‘The First International Conference on Research in Conservation Biology’ with a group of other leading conservationists in 1978.

Referred to by some as the ‘godfather of biodiversity’, Lovejoy’s interest in nature and biology began when he attended Millbrook School and worked at The Trevor Zoo in the 1950s. From there, he worked for many years in the Amazon of Brazil, later founding the Biological Dynamics of Forest Fragments Project (BDFFP) in Brazil in 1979 and later co-founding the Amazon Biodiversity Center in 2018. He worked to understand the impacts of forest fragmentation, leading the Minimum Critical Size of Ecosystems project in the Amazon and calling for the protection of tropical forests.

Lovejoy served on a number of science and environmental councils under presidents Reagan, Bush and Clinton and as Science Envoy for the Obama and Biden administrations. Through his work in the field of extinction research, he discovered that human-caused habitat destruction, pollution and climate change were threatening species around the world and predicted in the 1980s that 10–20% of all species would be extinct by the year 2020. This work won him the Blue Planet Prize in 2012, for being the first scientist to academically clarify how humans are causing habitat fragmentation and driving the biodiversity crisis.

Lovejoy also developed debt-for-nature swaps, where a part of a nation’s foreign debt can be forgiven in exchange for investments in environmental conservation measures, such as setting aside land as a nature preserve that would be off-limits to development. Throughout his career, Lovejoy authored many articles and books, while also providing forewords for numerous others. He helped to found the long-running TV series NATURE, a show that has educated and inspired the public about wildlife for over 40 years.

Thomas Lovejoy, environmental science and policy professor at George Mason University, speaks on the panel at Deforestation in the Amazon: Drivers and Policy Solutions. Image by Inter-American Dialogue via Flickr

Thomas Lovejoy: 22nd August 1941–25th December 2021

The NHBS Guide to UK Rabbit and Hare Identification

Rabbits and hares are species in the family Leporidae, which contains over 60 species. They are mammals within the order Lagomorpha, together with the pikas. They are small to moderate-sized species, characterised by long hind legs, long ears and rapid movements. They are almost exclusively herbivorous, feeding mainly on grasses and herbs, although they do also eat leaves, fruits and seeds. Leporids are coprophagous, meaning they pass food through their digestive system twice. To do this, they first expel the food as soft green faeces, termed cecotropes, which they then reingest, eventually expelling it again as dark faecal pellets. This increases their ability to break down and digest plant material, extracting further nutrients.

They inhabit a wide range of habitats, from mountains and wetlands to forests and grasslands. Leporids play an essential role in many of these ecosystems, as seed dispersers, ecosystem engineers (a species that significantly modifies their environment) and as a primary prey item for a number of predator species, such as foxes, wildcats and some mustelids, including stoats and weasels. Their young are particularly vulnerable to these predators, as well as badgers, domestic cats and several birds of prey. Because of this vulnerability, many leporids have large litters, often nesting in burrows underground to protect their young from predation.

One threat to populations, particularly in European rabbits, is myxomatosis, a disease caused by the poxvirus Myxoma virus. Its two natural hosts, the tapeti and brush rabbits of South, Central and North America, experience only mild disease. However, myxomatosis is a severe and usually fatal disease in European rabbits. When the disease originally spread to the UK in the early 1950s, the mortality rate was 99%. In the 1970s this declined to between 47 and 69% but populations were severely affected. The disease, which causes localised swelling, skin lesions, blindness and respiratory distress, has also been deliberately introduced into the wild on multiple occasions. Used to try to eradicate or control rabbit pest populations, myxomatosis was intentionally introduced in Australia, New Zealand, South America and parts of Europe, including Britain.

Other threats to leporid populations include rabbit haemorrhagic disease (RHDV1 and RHDV2), hunting, habitat loss and agricultural intensification. Rabbit populations declined by 64% in the UK between 1996 and 2018 and numbers of brown, mountain and Irish hares are also thought to have declined in some areas. As ecosystem engineers, the loss or reduction of these species can have major consequences, particularly for rabbit-dependent habitats. In their absence, the consequent changes in vegetation structure due to a lack of grazing can have further impacts on other wildlife, such as invertebrates.

Rabbit (Oryctolagus cuniculus)

Distribution: Widespread across the UK, although they are absent from Rum, Isles of Scilly and some smaller islands.
What to look for: Rabbits are the smallest leporids in the UK, with the characteristic long ears and long hind legs. They have a sandy, grey-brown colouration and a white tail. They have dark, amber coloured eyes. Other than their size, the most noticeable difference between rabbits and other leporids in the UK is the lack of a black tip on the ears.
Did you know? The rabbit, also known as a coney, is not native to the UK. The exact date of their introduction is one of ongoing research. It was previously thought that rabbits were first introduced by the Normans in the 11th or 12th century as both a food and fur resource. But the recent re-examination and radiocarbon dating of a bone found at a Roman palace show that at least one rabbit was present much earlier, in the first century AD. Researchers have stated that there is no evidence of many rabbits in the area and another analysis suggests the rabbit was kept in confinement, therefore it has been suggested that it was most likely kept as an exotic pet.

Brown hare (Lepus eueopaeus)

Distribution: Widespread across the UK, although they are less common and more restricted in Northern Ireland and absent from parts of north-west Scotland.
What to look for: This species is larger than the rabbit, with long, black-tipped ears and very long hind legs. Their colouration is redder than the rabbit and the mountain hare, and they have a black-topped tail that is white underneath. The brown hare has amber eyes and their fur can appear grizzled.
Did you know? This species is also non-native and were introduced in the Iron Age. Radiocarbon dating of bones found in Hampshire and Hertfordshire, along with historical accounts, suggest that brown hare were not eaten until hundreds of years later during the Roman period, and were instead associated with deities.

Mountain hare (Lepus timidus)

Distribution: Mainly in the highlands of Scotland, although they are also found in other areas of Scotland, on some Scottish islands and in the Peak District.
What to look for: This species has a grey-brown coat during the summer and a white coat in the winter, although the tips of their ears remain black in both forms and their tail remains white. They have brown eyes and long ears, although these are shorter than the brown hare’s.

Irish hare (Lepus timidus hibernicus)

Distribution: Widespread across Ireland
What to look for: They are very visually similar to the mountain hare, except they do not develop a white coat during winter months and are noticeably smaller. During the summer, their coat is reddish-brown which dulls to grey-brown in winter, although their tail remains pure white.
Did you know? The Irish hare is a subspecies of the mountain hare and is the only lagomorph species native to Ireland. Fossil carbon dating suggests that these hares have been present in Ireland for at least 30,000 years.

Jimmy Edmonds via Flickr (Image cropped)

Domestic rabbit (feral) (Oryctolagus cuniculus domesticus)

Distribution: Unknown
What to look for: Domestic rabbits can have a huge variety of appearances, with at least 305 breeds of domestic rabbits around the world, although different numbers are accepted by different organisations. They can vary in size, colouration, body shape, coat type and ear length.
Did you know? Many pet rabbits are abandoned each year, particularly in the period after Easter.

This Week in Biodiversity News – 3rd January 2022

Chester Zoo helps reintroduce ‘extinct fish’ to Mexico. The tequila fish (Zoogoneticus tequila) is a small species of goodied fish that disappeared from the wild in 2003 due to water pollution and the introduction of invasive fish species. A team of conservationists from Chester Zoo and the Michoacana University of Mexico have returned over 1500 fish to a number of springs in the Teuchitlán River in south-west Mexico, with the fish now thriving and breeding in the river. This project is hoped to have created a blueprint for future reintroductions of other endangered fish species.

Baby hellbender salamanders hatch at the St. Louis Zoo in Missouri, with hopes of restoring this species in the wild. The population of this species in Missouri has declined by over 75% since the 1980s, as they’re sensitive to environmental changes caused by climate change, pollution, disease and habitat modification. Chytridiomycosis, the deadly amphibian disease linked to massive worldwide amphibian die-offs, has also been detected in Missouri hellbenders. These captive-bred eggs will be carefully monitored and the hatchlings will be released into the wild when they are two years old.

19 bird species have been added to Nepal’s list of nationally threatened birds in the past decade. As of 2018, this list consists of 168 birds, with aquatic species making up 49 of these. The nationwide count of aquatic birds is taking place between 1st and 16th January, and will show the latest condition of the threatened bird species in Nepal. This increasing number of threatened species is thought to be due to a number of issues, including shrinking forest cover and wetlands, habitat destruction, chemical poisoning, land fragmentation, climate change and hunting.

The National Trust, RSPB, Woodland Trust and The Wildlife Trusts are calling on the Prime Minister to make New Year’s resolutions to tackle the climate and nature crises. These conservation charities are asking the UK government to make seven commitments for 2022 that focus on the protection and restoration of peatlands, protection for our marine environments and paying farmers to restore nature.

NHBS Staff Picks 2021

Welcome to our annual round-up of the books and equipment we have enjoyed reading and using this year, all chosen by members of the NHBS team. Here are our staff picks for 2021!

Song Meter Micro

Released earlier this year, the Song Meter Micro produces high-quality soundscape recordings at a significantly lower price point than standard acoustic recorders. The Micro opens the door to keen naturalists, like myself, to begin exploring the world of bioacoustics. This spring, we recorded our local dawn chorus (highly recommended!) and found it incredibly easy to set up using the free app on our own smartphone. Of particular use was the preset recording schedules, one of which uses your location and time zone to target recording around sunset and sunrise. The ease of use and beautifully clear recordings make the Micro a clear choice for my 2021 staff pick.
Gemma – Senior Wildlife Equipment Specialist

Islands of Abandonment: Life in the Post-Human Landscape

Officially abandoned places are often still very much inhabited by people on the fringes of society, as well as being reclaimed by nature. Islands of Abandonment is a highly enjoyable read about places, people and nature; part travelogue, part anthropology and part natural history, it reminded me strongly of The World Without Us. Cal Flyn writes engagingly, intelligently, and with compassion. I enjoyed reading this in hardback when it was first published, and the paperback is due to be released soon.
Anneli – Head of Finance and Operations

Recon Force Elite HP4

Being able to record the presence and often secret behaviour of the more elusive wildlife on my local patch with a trail camera is thoroughly rewarding. At the start of the year, Browning launched their latest trail camera, the impressively well-designed Recon Force Elite HP4. After seeing the stunning quality of video it captures in 1920 x 1080 FHD, it has become one of my firm favourites and I am excited to get it out into a wider range of habitats. Just ten years ago, having a trail camera that could record in this quality and also offer so many practical features and settings would have been prohibitively expensive, so I feel the Recon Force really does offer excellent value.
Ian – Wildlife Equipment Specialist

Beasts Before Us: The Untold Story of Mammal Origins and Evolution

Beyond a few academic textbooks and technical monographs, the deep evolutionary history of mammals has remained largely hidden in the academic literature. Beasts Before Us unleashes their story most spectacularly and engagingly. This beautifully written debut marks Panciroli as a noteworthy new popular science author.
Leon – Catalogue Editor

Defender Metal Seed Feeder

I have a Defender Metal Seed Feeder in my garden and absolutely love it. The ports and perches are all made of metal meaning that the local squirrel isn’t able to chew and wreck the feeder! Everything is easy to disassemble and reassemble, making cleaning the entire feeder a breeze. Paying a little bit extra for a metal bird feeder was definitely well worth it for the quality and longevity.
Antonia – Wildlife Equipment Manager

A Trillion Trees: How We Can Reforest Our World

A Trillion Trees is my choice for this year’s staff picks as it’s an optimistic take on the future of the world’s forests, championing the role of trees in the fight against climate change and in people’s daily lives. This book celebrates trees, exploring their importance, the history of our relationship with forests and the future role they may have in an emerging community-centred approach to the land.
Hana – Ecology Content Writer/Editor

Kite Falco Binoculars

Kite Optics have a great reputation for their entry- and mid-level optics. I’ve had my 8×32 Falcos for a few months now, and I’m absolutely loving them. The ED glass provides a bright, crystal-clear image even in lower light, while the smaller size keeps them portable. In most lights very little chromatic aberration is visible. I’ve had great fun seeing some of the winter migrants that are currently in residence around the UK’s coasts. A great choice for any birder looking for quality optics at a good price.
Josh – Wildlife Equipment Specialist

NHBS Moth Trap Starter Kit

Handmade in our workshop here in Devon, the NHBS Moth trap is my 2021 staff pick. Constructed from lightweight plastic panels covered with white nylon and weighing in at 2kg, the trap is portable, easy to assemble, and convenient to store. The sturdy 4.5m mains power lead runs a single 20W Blacklight bulb and the white fabric sides help to reflect UV light ensuring good attraction rates. I’ve always been a fan of the standard skinner shape which allows you to easily lay egg boxes along the bottom, whilst the upper panels help to retain the catch. At an attractive price point, this trap is ideal for beginners or anyone looking for a convenient trap for their garden.
Johnny – Senior Wildlife Equipment Specialist

Advanced Bug Hunting Kit

Although it’s a product we’ve sold for a long time, my staff pick is the Advanced Bug Hunting Kit. This year I fell back in love with bug hunting in my local area. While not being able to travel far but having the freedom to explore my surrounding countryside, bug hunting helped transport me to a whole other world, the vast and fascinating world of insects! This kit has all you need to get you started. While being suitable for use with children for family fun, it also includes the Collins Complete Guide to British Insects and Super Fine Pointed Forceps to accommodate a more delicate, detailed look into what you have captured.
Beth – Wildlife Equipment Specialist

Testing the Guide: Feathers

This is the first article in our new Testing the Guide series, in which we test the usability and application of various guides. Feathers: An Identification Guide to the Feathers of Western European Birds is a guide to over 400 European bird species, with an innovative key that allows for exceptionally precise identification by colour, feather structure and shape. This book also provides information on collection and conservation methods, as well as the locations of feathers on birds, all of which are clearly explained and richly illustrated.

This guide discusses the characteristics useful for identification, such as feather measurements, size variations and flight and tail feather shapes and adaptions. Also included are examples of identifiable body feathers and a beginner’s exercise in the identification of feathers from some common species. There are also species descriptions, including passerines, aquatic birds and birds of prey. The sequence of which these species are described, within families or orders, does not follow the usual systematic order: the author has attempted to describe groups that may be confused in close proximity due to their similar morphological characteristics or their presence in the same habitats.

This is a large-format guide, which may limit the practicality of taking it into the field, but it does allow the presentation of different feathers to be done in the clearest way. Therefore, this guide is most useful when feathers are collected or photographed. The more than 300 illustrations and 400 photographs facilitate the identification of many different feathers, often reducing the need for further, independent research.

Using the guide

Several feathers have been gathered by our colleagues around the UK, with notes taken of the location, date and habitats in which they were found, to aid identification. The guide details best-practice methods for collecting, labelling and preserving the feathers, which we found particularly useful. As the author suggests that larger feathers are more likely to be identifiable, and body feathers are much harder to distinguish, we chose to use the largest or most distinctive feathers we had collected.

Feather 1

The largest feather in our collection was found on the edge of town in Bovey Tracey in south Devon. It is a large, rigid feather that is dark brown in colour, with a white coloured section on the inner vane and darker brown irregular bars that end in specking on the white section. Using one of the many useful figures within chapter 2 (p. 17), as well as following the key located in chapter 3, we identified it as a notched, or fingered, outer primary feather from the right side of the bird. As the pattern matched several of the colour criteria within chapter 4, the process of determining identification took a little longer than expected. Using the colour criteria 4, 5, and 7, we were able to determine the feather is from a diurnal bird of prey.

Using the table for diurnal birds of prey in chapter 8, we noted that the size of the feather (approximately 13.6in / 34.5cm) and the patternation matched several species, including the common buzzard (Buteo buteo), the rough-legged buzzard (Buteo lagopus) and osprey (Pandion haliaetus). Referring to a number of the many beautiful photo plates and our own research, it is most likely a feather from the common buzzard, given its distribution, habitat and that they are much more common in the UK than osprey. Using the table in chapter 5 (p84), the placement of this notched primary feather is most likely between P10-P8, although it can be as far as P6 or even P5.

Feather 2

Using the information in chapter 3 again, we were able to determine that this second feather is also a large feather, most likely from the left side of the bird, as the feather curves to the left when looked at from above with the base towards us. Following the key was more difficult for this feather, as the answers were not as clear. However, we determined that this feather is a rectrix, or tail feather. As the width of both vanes are similar (outer: ~1.3cm, inner: ~1.2cm, although there is some degrading along the edge of the inner vane that may be masking its original width), the feather was most likely located towards the centre of the tail. As the rachis (or shaft) is curved and not fully straight, however, it is unlikely to have been located directly in the centre.

The feather is rufous and dark brown, with an irregular bar pattern that sometimes resembles vermiculation and gradually breaks down into speckling, with a more rufous tip. As the size of the darker bars is smaller, it would be referred to as brown bars on a rufous background. Using the colour criteria list in chapter 5, the feather size (~24.2cm / ~9.53in) is within the range of several species. As the feather is not velvety, we could discount owls, diurnal raptors or nightjars. As the feather is narrow and elongated, the chapter suggested looking at falcons, but we found that it did not match any due to the pattern and pointed tip. We then researched each species or species group that the size matched and determined that the feather is most likely a tail feather from a golden pheasant (Chrysolophus pictus). This is an introduced species with several small, wild populations in areas such as East Anglia and in the Isles of Scilly, preferring dense woodland with sparse undergrowth. They can also be found in many aviaries and zoos, with a number of colour variations and hybrids, particularly with the Lady Amherst Pheasant (Chrysolophus amherstiae). Their feathers are often used by florists, as well as crafters to decorate heads, earrings, clothing and even lures for fly-fishing.

Feather 3

Bright, uniquely colour feathers have a higher chance of being identifiable to a species level. This feather was found in the wetlands around Chew Valley Lake reservoir in Somerset. The rigidity of this feather shows this is also a large feather, and the curve suggests it comes from the right side of the bird. Following the key in chapter 3, we determined that this is a secondary feather.

Using the colour criteria in chapter 5, the metallic dark blue colouration of the feather and the length (12.2cm / 4.8inchs) matches a number of species, but the handy colour plate on the next page allowed us to determine that this feather most likely came from a mallard (Anas platyrhynchos). The blue colouration makes up part of the speculum, the contrasting patch of colour on the bird’s wings. Referring to the species description and feather spread on pages 304-5, the feather is most likely a middle secondary, although exact positioning would be difficult to determine with a lone feather. The well defined dark blue colourations suggest between S3-S10. There are also a number of hybrid Anas species and the identification of these through feathers is unlikely.

Our opinion

There are several limitations to identifying feathers, as individual variability in size and colour are common amongst species, and feathers can be similar between species within the same family or that occupy the same habitat or niche. The author suggests that only a small fraction of feathers lost by birds are identifiable, therefore the practical applications of this guide are restricted. However, we were able to use this guide to identify many of our larger or more unique feathers, including the common kingfisher (Alcedo atthis), European goldfinch (Carduelis carduelis) and barn owl (Tyto alba).

It is relatively straightforward to identify where on the body the feathers come from and, while the feather can sometimes match several colour criteria, it is also quite easy to identify a list of potential species matches. From here, the size of the feather can help to narrow the list down, although this is not always possible. Using the various species descriptions and feather spreads in chapter 8, your own research and knowledge of the habitat and location that the feather was found in and the distinctive markings or colouration on the feather itself can all help you to identify your feather to species level. We also found that, while our first feather did not resemble the osprey spread in the guide, it did match feathers from other collection photographs we found in our own research. Therefore, while this guide is incredibly helpful in determining the type of feather and the list of possible species, we encourage researching any potential match both with the guide’s species descriptions and through independent research. Feathers: An Identification Guide to the Feathers of Western European Birds is a novel introduction to the world of identifying feathers, which can be an engaging and entertaining way to increase your knowledge of Europe’s birds.

Feathers: An Identification Guide to the Feathers of Western European Birds
Cloe Fraigneau
Hardback | November 2021

Grey Heron (Ardea cinerea)

Little Egret (Egretta garzetta)

Great White Egret (Ardea alba)

Eurasian Bittern (Botaurus stellaris)

Little Bittern (Ixobrychus minutus)

Cattle Egret (Bubulcus ibis)

Great Blue Heron (Ardea herodias)

Purple Heron (Ardea purpurea)

Suggested reading and equipment:

What species can you find here?

Flora

Saltmarsh grass (Puccinellia sp.)

Annual Sea-blite (Suaeda maritima)

Sea Aster (Aster tripolium)

Sea purslane (Halimione portulacoides)

Fauna

Saltmarsh Plume (Agdistis bennetii)

Three-spined stickleback (Gasterosteus aculaeatus)

Shore crab (Carcinus maenas)

Ragworm (Hediste diversicolor)

Mud snail (Hydrobia ulvae)

Overwintering birds

Threats

Hopes for the future

Areas of significance

Further reading and useful equipment

Nightingale (Luscinia megarhynchos)

Black redstart (Phoenicurus ochruros)

(Common) Redstart (Phoenicurus phoenicurus)

Stonechat (Saxicola rubicola)

(Northern) Wheatear (Oenanthe oenanthe)

Whinchat (Saxicola rubetra)

Bluethroat (Luscinia svecica)

Pied Flycatcher (Ficedula hypoleuca)

Spotted Flycatcher (Muscicapa striata)

Robin (Erithacus rubecula)

Suggested reading and equipment:

How we tested

What we found

Our opinion

Edward O. Wilson 1929–2021 and Thomas Lovejoy 1941–2021

Rabbit (Oryctolagus cuniculus)

Brown hare (Lepus eueopaeus)

Mountain hare (Lepus timidus)

Irish hare (Lepus timidus hibernicus)

Domestic rabbit (feral) (Oryctolagus cuniculus domesticus)

Suggested reading:

Using the guide

Feather 1

Feather 2

Feather 3

Our opinion