Bowland Beth: An Interview with David Cobham

Bowland Beth dramatises the short life of an English hen harrier between 2011 and 2012 and immerses the reader in the day-to-day regimen of her life. Interweaved with her story is the larger tale of the species fight for survival under the constant threat of persecution. In this article our book specialist, Nigel Jones, talks to the author, David Cobham, about the plight of the hen harrier and his hopes for the future of this glorious bird.


David Cobham
The Author of Bowland Beth, David Cobham.

There are numerous organisations and NGOs in the book who want the same outcome for the hen harrier, but who seem to be in conflict as to how to achieve their aims. What strategy do you think would enable all these groups to speak with one voice; do you think this would help when confronting powerful lobby groups such as the landowners and their connections in government?

The problem lies in some organisations wanting an outright ban on driven grouse shooting. That is not going to happen as has already been demonstrated. What we all have to work for is a system of licensing driven grouse moor shooting. Controlled by DEFRA a driven grouse moor would be licensed to operate and granted the subsidies that are substantial.  If a case of illegal killing was proven in court the license for driven grouse shooting would be revoked for 3 years. I believe this would get a majority backing.

The hen harrier in your book is named Beth. I encounter some people who disapprove of naming animals, they claim this is anthropomorphism and inappropriate to conservation.  What would you say to those people?

Mark Avery in his review of my book saw exactly what I was trying to do. Ring numbers or tag numbers are impersonal. By giving them names it makes us feel closer to the birds. The news that Bowland Beth has died is much more heart wrenching than that 834759 has died.

Sadly, I have never seen a hen harrier. Your description of them is written with such a passion akin to awe that I am now determined to see one of these birds for myself. What chance does an everyday person like myself have of seeing a hen harrier in the wild?

A survey last year reported that there were 4 breeding pairs of hen harriers in England – none of them on grouse moors. The best time to see hen harriers is in the winter when there is a considerable influx of hen harriers from the Scandinavian countries. They pitch up from October on the east of England and can be seen as they come into roost in reed beds on the coast or in damp areas with shelter from silver birches inland. They return north to breed in mid-March.

The landowners say they need to make an income from the moors, and driven grouse shooting is the only way they can do this. They will put the case for local employment and, like the debate around foxhunting, accuse opponents of not understanding ‘the countryside.’ Do you think a ban on driven grouse shooting is the only way to force the landowners hand, or do you think working alongside landowners to assist with techniques such as brood management and diversionary feeding is the best way to proceed?

Brood management is just one of six measures in DEFRA’s save the hen harrier project. It is a concession to the grouse moor owners. This is how it will work. First, when a nest is found on a grouse moor, diversionary feeding must be tried. This involves feeding day old chicks during the six week period when hen harriers take grouse chicks. They are placed on a plank supported by trestles about 30 metres from the nest. Trials at Langholm showed that this method reduces chick predation by 86%. If another hen harrier nests within 10 km of the original nest then brood management comes into play. The clutch of eggs is removed and hatched in an incubator. They are taught to feed. When they can feed themselves they are placed in an aviary out on the moor. Monitored by experts they will be given a “soft” release and continue to be fed until they are self sustaining.

If the trial is shown to fail due to illegal killing it will cease immediately.

I’m quite cynical about this. I think a lot gamekeepers won’t allow a hen harrier to nest on their moor and furthermore there are not enough hen harriers breeding on grouse moors in England to justify this procedure.

There are some conservationists that advocate adopting a more laissez-faire approach to extinction, moving priorities to bio-abundance rather than biodiversity and accepting that extinction and invasive species are part of the evolutionary process. What are your thought regarding this way of thinking?

I quote directly from my book. An extract from The Diversity of Life by Professor Edward O. Wilson: “We should not knowingly allow any species or race to go extinct. There can be no purpose more enspiriting than to begin the ages of restoration, reweaving the wondrous diversity of life that still surrounds us”. The hen harrier was extinct as a breeding bird in England in 2013. Its fate lies in our hands now.

Despite the hen harrier being a totem and emblematic of a battle between conservationists and those wishing to preserve a ‘rural way of life;’ a quick straw-poll I conducted indicated little knowledge of the bird. However, with more knowledge, I believe the majority would care about the hen harrier. How can the plight of the hen harrier compete in a media blizzard of often superficial and meaningless content?

When Bowland Beth was shot we believe she had just found a mate. Her femur was fractured, six of her tail feathers cut through and her femoral artery nicked. She picked herself up and flew unsteadily off, streaming blood behind her. Her vision blurred and she crashed into heather. Don’t tell me that birds don’t feel pain. She must have been in exquisite pain. I know about pain. I broke my femur last October, and lay there for six hours before I was found. That is the bond I have with Bowland Beth.

Do you believe satellite tagging is a good way to monitor hen harriers, and if so why?

Illegal killing of hen harriers continues. There is an arms race – sophisticated satellite tagging versus state of the art weaponry. Since 2007 36 hen harriers satellite tagged by Natural England have “disappeared”. Bowland Beth was one of them. The Hawk and Owl Trust satellite tagged two hen harriers last year. The male, Rowan, was shot last October in the north of England. His leg was smashed and he was able to fly some distance before collapsing in the heather. Sorrel, a female, is alive and well and flourishing in Scotland.

Protecting the hen harrier requires dedication, passion and commitment to the cause of conservation, often from volunteers working long hours in all weathers. What would you say to inspire a future generation of conservationist to take up the baton?

To watch a young hen harrier successfully fledge from her nest and set out into the unknown is the start of a Great Adventure. Sharing this knowledge with other weary volunteers who have probably not seen anything all day re-invigorates them, gives them the impetus to go out again and search for that elusive V-shaped image of a hen harrier, searching up and down, for its favourite prey, short-tailed field voles.


Bowland Beth: The Life of an English Hen Harrier, written by David Cobham and illustrated by Dan Powell, is published by William Collins and is available in hardback.

 

Top 10 Bat Boxes for New Builds and Developments

Schwegler 1WI Bat BoxLooking for a bat box but don’t know which one to buy? This article is the third in a three part series designed to help you to make the right choice. Here you will find our top 10 boxes for incorporating into the masonry of a new build or development. The previous two posts feature the best boxes for trees and woodland and for walls and fences.

For each box listed you will also find helpful information such as its dimensions and weight and the box type (e.g. whether it is for summer use, for hibernation or for access into an existing roost space).

The Glossary below provides a guide to the key terms used in the descriptions.

• Woodcrete/WoodStone: A blend of wood, concrete and clay which is very durable. It is also breathable and helps to maintain a stable temperature inside the box.
• Summer: Summer boxes are suitable for the warmer months but are less likely to be used over the winter.
• Hibernation: Designed to be larger and better insulated, hibernation boxes will provide a safe and warm space for bats over the winter.
• Maternity: Suitable for the formation of colonies and raising of young.
• Access: Provides an entrance to an existing roof space such as a wall cavity or loft.
• Crevice: Provides one or more narrow roost spaces. Species which prefer this type of box include common, soprano and Nathusius pipistrelle, Brandt’s and whiskered bats.
• Cavity: Provides a more spacious roost space. Bats such as brown long-eared, Daubenton’s and Natterer’s bats prefer cavity boxes.
• Large cavity: These boxes allow space for flight within the roost which is preferred by brown long-eared bats in particular.


Schwegler 1FR Bat Tube1. Schwegler 1FR Bat Tube

• Made from: Woodcrete
• Dimensions: 47.5 x 20 x 12.5cm; 9.8kg
• Box type: Cavity, summer

 

Habibat Bat Box2. Habibat Bat Box

• Made from: Concrete and brick
• Dimensions: 44 x 21.5 x 10.2cm; 9kg
• Box type: Crevice, summer

 

3. Bat Block

• Made from: Concrete and FSC wooden panel
• Dimensions: 21.5 x 44 x 16cm; 15kg
• Box type: Crevice, summer, maternity (south or west facing), hibernation (north facing)

 

 

Schwegler 1FE Bat Access Panel4. Schwegler 1FE Bat Access Panel

• Made from: Woodcrete
• Dimensions: 30 x 30 x 8cm; 5.1kg
• Box type: Large cavity, access

 

Bat Access Tile Set5. Bat Access Tile Set

• Made from: Clay
• Dimensions: 25.5 x 16cm; 3.5kg
• Box type: Cavity/crevice, access

 

Bat Brick6. Bat Brick

• Made from: Brick
• Dimensions: 6 x 21.5 x 10cm; 1.9kg
• Box type: Cavity, access

 

7. PRO UK Build-in WoodStone Bat Box

• Made from: WoodStone
• Dimensions: 14 x 21 x 15cm; 6.7kg
• Box type: Crevice, summer

 

Schwegler 1WI Bat Box8. Schwegler 1WI Bat Box

• Made from: Woodcrete
• Dimensions: 54.5 x 34.5 x 9.5cm; 15kg
• Box type: Crevice, hibernation and maternity

 

Ibstock Enclosed Bat Box C9. Ibstock Enclosed Bat Box C: Small

• Made from: Concrete and brick
• Dimensions: 21.5 x 21.5 x 10.5cm; 6.7kg
• Box type: Crevice, summer

 

Habibat Bat Access Slate10. Habibat Bat Access Slate

• Made from: Slate
• Dimensions: 41.8 x 37.5 x 8cm; 1.3kg
• Box type: Large cavity, access

Browse our full range of build-in bat boxes.


The full range of nest boxes can be found in our online shop, as well as a useful nest box price list which can be downloaded as a pdf.

Best Bird Boxes for Different Species

This guide is designed to help you choose the best bird box, based on the species of bird that you are hoping to attract, or that you know can be found in your garden or other outdoor space. Species are organised alphabetically by common name, and for each one we have included information about the preferred type of box and siting location. You will also find a handy list of suitable boxes available from NHBS.


Barn OwlTyto alba

Photo credit: Portable Portraits via Flickr

• Box type: Large box with entrance hole measuring at least 150 x 200mm. An exercise platform for young owls is also beneficial.
• Siting guidelines: At least 4m high in an undisturbed area, away from roads. Boxes can be installed inside a barn if there is a clear flight path to the entrance.
• Suitable boxes:
Barn Owl Nest Box
Eco Barn Owl Nest Box
Triangular Barn Owl Nest Box
Flat-Pack Barn Owl Nest Box


BlackbirdTurdus merula

• Box type: Medium box with platform-style front.
• Siting Guidelines: At least 1.5m high and preferably within a bush or shrub.
• Suitable boxes:
Blackbird FSC Nest Box


Photo credit: Tony Hisgett via Flickr

Blue TitCyanistes caerulus

• Box type – Small box with 25mm entrance hole. Will also use boxes with a larger hole if there isn’t competition from larger birds.
• Siting guidelines – Trees and walls in gardens and woodland. 1-5m in height with a clear flight path. Avoid direct sunlight and busy areas of the garden.

• Suitable boxes:

Traditional Wooden Bird Nest Box with 25mm hole
Small Bird Nest Box with 25mm Hole
Apex Bird Box with 25mm Hole
Schwegler 1B Nest Box with 26mm Hole


Photo credit: Remi Abel via Flickr

Black RedstartPhoenicurus ochruros

• Box type: Small box with open front.
• Siting guidelines: At least 3m high in an urban area.
• Suitable boxes:
Schwegler 2HW Nest Box
WoodStone Build-in Open Nest Bo


Coal TitPeriparus ater

• Box type: Small box with 25mm entrance hole. Will also use boxes with a larger hole if there isn’t competition from larger birds.
• Siting guidelines: Site boxes low to the ground unless predation from cats is a problem.
• Suitable boxes:
Traditional Wooden Bird Nest Box with 25mm hole
Small Bird Nest Box with 25mm Hole
Apex Bird Box with 25mm Hole
Schwegler 1B Nest Box with 26mm Hole


Photo credit: Steve Childs via Flickr

Crested TitLophophanes cristatus

• Box type: Small box with 28mm entrance hole. Will also use boxes with a larger hole if there isn’t competition from larger birds.
• Siting guidelines: Trees and walls in garden or woodland. 1-5m in height with a clear flight path. There is some evidence to suggest that crested tits will only utilise boxes if they are filled with sawdust or wood shavings.
• Suitable boxes:
Vivara Pro Seville 28mm WoodStone Nest Box
Small Bird Nest Box with 28mm Hole
Apex Bird Box with 28mm Hole


Photo credit: Rickard Holgersson via Flickr

DipperCinclus cinclus

• Box type: Medium box with open front.
• Siting guidelines: Adjacent to natural moving water.
• Suitable boxes:
No. 19 Schwegler Dipper and Pied Wagtail Nest Box
Eco Dipper and Wagtail Box

 


Great Spotted WoodpeckerDendrocopos major

• Box type: Medium box with 50mm entrance hole.
• Siting guidelines: On a tree at a height of 3 – 5m. Boxes should be stuffed with soft material such as rotten wood or bark.
• Suitable boxes:
Woodpecker/Starling Nest Box
Woodpecker Box


Great TitParus major

• Box type: Small box with 28mm entrance hole. Will also use boxes with a larger hole if there isn’t competition from larger birds.
• Siting guidelines: Trees and walls in gardens and woodland. 1-5m in height with a clear flight path.
• Suitable boxes:
Vivara Pro Seville 28mm WoodStone Nest Box
Small Bird Nest Box with 28mm Hole
Apex Bird Box with 28mm Hole


Photo credit: Michele Lamberti via Flickr

Green WoodpeckerPicus viridis

• Box type: Medium box with 60mm entrance hole.
• Siting guidelines: On a tree at a height of 3 – 5m. Boxes should be filled with soft material such as rotten wood or bark.
• Suitable boxes:
Large Bird Nest Box

 


Photo credit: Andy Morffew via Flickr

Grey WagtailMotacilla cinerea

• Box type: Medium box with open front.
• Siting guidelines: On a wall (e.g. a bridge) near to fast flowing water.
• Suitable Boxes:
Eco Dipper and Wagtail Box
Vivara Pro Barcelona WoodStone Open Nest Box
Traditional Open Fronted Wooden Bird Nest Box


Photo credit: Steve Childs via Flickr

HobbyFalco subbuteo

• Box type: Nesting Basket 40-50cm in diameter
• Siting guidelines: In the top of a tree near the edge of a wood, preferably overlooking farmland or wetland.
• Suitable Boxes:
Long-Eared Owl and Hobby Nesting Basket
Schwegler Nesting Baskets for Large Birds: 40cm Diameter

 


Photo credit: Stefan Berndtsson via Flickr

House MartinDelichon urbica

• Box type: Bowl with narrow entrance.
• Siting guidelines: Directly beneath the eaves. Locations above windows and doors are often preferred, so a droppings board may be necessary.
• Suitable boxes:
House Martin Nests
Ceramic House Martin Bowl
Slide Out House Martin Apex Nest


House SparrowPasser domesticus

• Box type: Small box with 32mm entrance hole.
• Siting guidelines: On trees or buildings at a height of 2m or above. House sparrows are colonial nesters so multiple boxes can be sited near to each other, or terraced boxes used.

• Suitable boxes:
Schwegler 1B Nest Box with 32mm Hole
Schwegler 1MR Avianex
Traditional Wooden Bird Nest Box with 32mm Hole
Apex Bird Box with 32mm Hole
Vivara Pro WoodStone House Sparrow Nest Box
Starter Nest Box with 32mm Hole
Schwegler 1SP Sparrow Terrace
Sparrow Terrace Nest Box
House Sparrow Terrace FSC Nest Box
Build-in Terraced Sparrow Box


JackdawCorvus monedula

• Box type: Large box with 150mm entrance hole.
• Siting guidelines: As high as possible on a building or tree (minimum 3m). Jackdaws are colonial nesters so several boxes may be placed close together.
• Suitable boxes:
Tawny Owl, Jackdaw and Stock Dove Nest Box


Photo credit: Kev Chapman via Flickr

KestrelFalco tinnunculus

• Box type: Large box with open front.
• Siting guidelines: On a tree or building at a minimum height of 5m with a clear flight path to the entrance.
• Suitable boxes:
Kestrel Nest Box
Kestrel Open Nest Box


Photo credit: Kev Chapman via Flickr

KingfisherAlcedo atthis

• Box type: Tunnel with rear nesting chamber.
• Siting guidelines: Buried in a vertical bank beside a slow-moving river or lake. Only the entrance should be visible and it should be at least one metre above the maximum water level. Filling the tunnel with sand will improve the chances of occupation. If possible, two tunnels should be placed together, at least 70cm apart.
• Suitable boxes:
Vivara Pro WoodStone Kingfisher Tunnel


Little OwlAthene noctua

• Box type: Tubular box with a 70mm entrance hole and internal baffle to reduce light.
• Siting guidelines: On a horizontal branch at a minimum height of 3m.
• Suitable boxes:
Little Owl Apex Nest Box


Photo credit: vil.sandi via Flickr

Long-eared OwlAsio otus

• Box type: Nesting basket 30-40cm in diameter.
• Siting guidelines: Wire the basket into a tree at a minimum height of 4m. Line the bottom of the basket with small twigs.
• Suitable boxes:
Long-Eared Owl and Hobby Nesting Basket
Schwegler Nesting Baskets for Large Birds


Photo credit: Stefan Berndtsson via Flickr

Marsh TitPoecile palustris

• Box type: Small box with 25mm entrance hole.
• Siting guidelines: Site boxes low to the ground unless predation from cats is a problem.
• Suitable boxes:
Traditional Wooden Bird Nest Box with 25mm hole
Small Bird Nest Box with 25mm Hole
Apex Bird Box with 25mm Hole
Schwegler 1B Nest Box with 26mm Hole


Photo credit: caroline legg via Flickr

NuthatchSitta europaea

• Box type: Small box with 32mm entrance hole.
• Siting guidelines: On a tree at a height of at least 3m and with a clear flight path.
• Suitable boxes:
Schwegler 1B Nest Box with 32mm Hole
Schwegler 1MR Avianex
Traditional Wooden Bird Nest Box with 32mm Hole
Apex Bird Box with 32mm Hole
Vivara Pro Seville 32mm WoodStone Nest Box


Photo credit: Steve Childs via Flickr

Pied FlycatcherFicedula hypoleuca

• Box type: Small box with 28mm entrance hole.
• Siting guidelines: In a woodland, preferably overlooking a glade. Boxes should be installed at a height of 2-4m. If competition with earlier nesting tits is a problem, the holes of several boxes may be blocked up until the flycatchers arrive.
• Suitable boxes:
Vivara Pro Seville 28mm WoodStone Nest Box
Small Bird Nest Box with 28mm Hole
Apex Bird Box with 28mm Hole


Photo credit: Wildlife Terry via Flickr

Pied WagtailMotacilla alba

• Box type: Small box with open front.
• Siting guidelines: On a tree or building at a height of up to 5m. Areas close to grassland and water preferable.
• Suitable boxes:
Eco Robin (open-Fronted) Nest Box
Apex Robin Box
Vivara Pro Barcelona WoodStone Open Nest Box


Photo credit: Len Worthington via Flickr

RedstartPhoenicurus phoenicurus

• Box type: Small box with 40mm entrance hole.
• Siting guidelines: On trees near woodland or parkland at a height of 1-3m.
• Suitable boxes:
1N Schwegler Deep Nest Box
2HW Schwegler Nest Box

 


RobinErithacus rubecula

• Box type: Small box with open front.
• Siting guidelines: Bury the box in thick vegetation. Boxes can be low to the ground if predation by cats is not a problem.
• Suitable boxes:
2H Schwegler Robin Box
Robin and Wren FSC Nest Box
Robin Nest Box
Traditional Open Fronted Wooden Bird Nest Box


Sand MartinRiparia riparia

• Box type: Tunnel, approximately 100mm in diameter
• Siting guidelines: Tunnels should be filled with sand and buried into an artificial or natural sandbank. (Banks should be vertical or slightly overhanging).
• Suitable boxes:
Sand Martin Nest Box


Photo credit: Derek Keats via Flickr

Spotted flycatcherMuscicapa striata

• Box type: Small box with open front. Front panel should be fairly low.
• Siting guidelines: On a tree at a height of 2-4m and with a clear outlook (e.g. next to a lawn or woodland clearing). Alternatively on a building, nestled within ivy or other climbing plants.
• Suitable boxes:
Flatpack Bird Box – Open Front
Robin Nest Box


StarlingSturnus vulgaris

• Box type: Medium box with 45mm entrance hole.
• Siting guidelines: On a tree or building at a minimum height of 2.5m. Starlings nest colonially so several boxes may be placed close together.
• Suitable boxes:
Woodpecker/Starling Nest Box
Large Bird Nest Box
Woodpecker Box


Photo credit: Tony Hisgett via Flickr

Stock DoveColumba oenas

• Box type: Large box with 150mm entrance hole.
• Siting guidelines: At least 3m high on a tree overlooking open fields or in an open barn.
• Suitable boxes:
Tawny Owl, Jackdaw and Stock Dove Nest Box


SwallowHirundo rustica

• Box type: Open cup.
Siting guidelines: Under ledge or rafters inside an outbuilding. Swallows nest colonially so several cups can be placed near to each other.
Suitable boxes:
No. 10 Schwegler Swallow Nest
WoodStone Swallow Nest Bowl
Ceramic Swallow Bowl


Photo credit: pau.artigas via Flickr

SwiftApus apus

• Box type: Medium box with oval entrance (approx. 30 x 60mm). Where starlings are present, ensure the hole size is a maximum of 28mm in height.
Siting guidelines: As high as possible either under the eaves of a building or in a loft space with access to the entrance through a wall or vent. A nesting mould or ring of plaited straw can be put into the box to encourage nest building.
Suitable boxes:
WoodStone Swift Nest Box
No. 17A Schwegler Swift Nest Box (Triple Cavity)
FSC Wooden Swift Box
WoodStone Build-in Swift Nest Box Deep
Vivara Pro Cambridge Brick Faced Swift Nest Box
No. 17 Schwegler Swift Nest Box (Single Cavity)
No. 16 Schwegler Swift Box
Schwegler Lightweight Swift Box Type 1A


Tawny OwlStrix aluco

Box type: Large box or chimney-style box with 150mm entrance hole.
Siting guidelines: On a tree at a height of at least 2.5m with a clear flight path (particularly below the box).
Suitable boxes:
Tawny Owl Nest Box
Tawny Owl, Jackdaw and Stock Dove Nest Box


Tree SparrowPasser montanus

Box type: Small box with 28mm hole.
Siting guidelines: On a tree at a height of at least 2m. Tree sparrows will nest in groups so boxes can be placed near to one another.
Suitable boxes:
Vivara Pro Seville 28mm WoodStone Nest Box
Small Bird Nest Box with 28mm Hole
Apex Bird Box with 28mm Hole


Photo credit: Jannis via Flickr

WrenTroglodytes troglodytes

Box type: Small box with open front.
Siting guidelines: Well hidden in thick, preferably thorny, undergrowth.
Suitable boxes:
Robin and Wren FSC Nestbox
Schwegler 1ZA Wren Roundhouse
Vivara Pro Barcelona WoodStone Open Nest Box

 


 

Top 10 Bat Boxes for Walls and Fences

Improved Cavity Bat BoxLooking for a bat box but don’t know which one to buy? This article is the second in a three part series designed to help you to make the right choice.

Here you will find our top 10 boxes for installing on an external wall or fence. The first and third posts cover the best options for installing on a tree in a garden, park or woodland and for building into a new build or development respectively.

For each box you will also find helpful information such as its dimensions and weight and the box type (e.g. whether it is for summer use, for hibernation or for access into an existing roost space).

The Glossary below provides a guide to the key terms used in the descriptions.

• Woodcrete/WoodStone: A blend of wood, concrete and clay which is very durable. It is also breathable and helps to maintain a stable temperature inside the box.
• Summer: Summer boxes are suitable for the warmer months but are less likely to be used over the winter.
• Hibernation: Designed to be larger and better insulated, hibernation boxes will provide a safe and warm space for bats over the winter.
• Maternity: Suitable for the formation of colonies and raising of young.
• Access: Provides an entrance to an existing roof space such as a wall cavity or loft.
• Crevice: Provides one or more narrow roost spaces. Species which prefer this type of box include common, soprano and Nathusius pipistrelle, Brandt’s and whiskered bats.
• Cavity: Provides a more spacious roost space. Bats such as brown long-eared, Daubenton’s and Natterer’s bats prefer cavity boxes.
• Large cavity: These boxes allow space for flight within the roost which is preferred by brown long-eared bats in particular.


Schwegler 1FF Bat Box1. Schwegler 1FF Bat Box

• Made from: Woodcrete and wood
• Dimensions: 43 x 27 x 14cm; 9.5kg
• Box type: Cavity; summer, maternity

 

2. Vivara Pro WoodStone Bat Box

• Made from: WoodStone
• Dimensions: 25 x 19 x 16.5cm; 4.5kg
• Box type: Cavity; summer

 

Schwegler 2FE Bat Shelter3. Schwegler 2FE Wall-Mounted Bat Shelter

• Made from: Woodcrete
• Dimensions: 30 x 25 x 5cm; 2.5kg
• Box type: Cavity, hibernation

 

Chavenage Bat Box4. Chavenage Bat Box

• Made from: FSC Wood
• Dimensions: 38 x 18 x 10cm; 1.2kg
• Box type: Cavity, summer

 

Schwegler 1WQ Bat Roost5. Schwegler 1WQ Summer & Winter Bat Roost

• Made from: Woodcrete
• Dimensions: 58 x 38 x 12cm; 22kg
• Box type: Crevice, hibernation and maternity

 

Improved Cavity Bat Box6. Improved Cavity Bat Box

• Made from: FSC Plywood
• Dimensions: 38 x 24 x 15cm; 1.5kg
• Box type: Cavity, summer

 

7. Large Multi Chamber WoodStone Bat Box

• Made from: WoodStone and wood
• Dimensions: 27.5 x 15 x 16cm; 4kg
• Box type: Crevice, summer, maternity, hibernation (mild winters)

 

Beaumaris WoodStone Bat Box8. Beaumaris WoodStone Bat Box: Midi

• Made from: WoodStone
• Dimensions: 39 x 29 x 6cm; 4.4kg
• Box type: Crevice, summer

 

Improved Roost Maternity Bat Box9. Improved Roost Maternity Bat Box

• Made from: FSC Plywood
• Dimensions: 49 x 26 x 13cm; 6.6kg
• Box type: Crevice, maternity

 

Low Profile WoodStone Bat Box10. Low Profile WoodStone Bat Box

• Made from: WoodStone
• Dimensions: 44 x 29 x 9cm; 4.7kg
• Box type: Crevice, summer

 

Browse our full range of bat boxes for external walls.

Top 10 Bat Boxes for Trees and Woodland

Schwegler 2F Bat Box front panel with one of its residents.

Looking for a bat box but don’t know which one to buy? This article is the first in a three part series designed to help you to make the right choice.

The following two blog posts will cover our bestselling boxes for walls and fences and for building into a new build or development.

Here you will find our top 10 boxes for installing on a tree, in a garden, park or woodland. For each box you will also find helpful information such as its dimensions and weight and the box type (e.g. whether it is for summer use, for hibernation or for access into an existing roost space).

The Glossary below provides a guide to the key terms used in the descriptions.

• Woodcrete/WoodStone: A blend of wood, concrete and clay which is very durable. It is also breathable and helps to maintain a stable temperature inside the box.
• Summer: Summer boxes are suitable for the warmer months but are less likely to be used over the winter.
• Hibernation: Designed to be larger and better insulated, hibernation boxes will provide a safe and warm space for bats over the winter.
• Maternity: Suitable for the formation of colonies and raising of young.
• Access: Provides an entrance to an existing roof space such as a wall cavity or loft.
• Crevice: Provides one or more narrow roost spaces. Species which prefer this type of box include common, soprano and Nathusius pipistrelle, Brandt’s and whiskered bats.
• Cavity: Provides a more spacious roost space. Bats such as brown long-eared, Daubenton’s and Natterer’s bats prefer cavity boxes.
• Large cavity: These boxes allow space for flight within the roost which is preferred by brown long-eared bats in particular.


1. 2F Schwegler Bat Box

• Made from: Woodcrete
• Dimensions: 33 x 16 x 16cm; 4kg
• Box type: Cavity, summer

 

2. 2FN Schwegler Bat Box

• Made from: Woodcrete
• Dimensions: 36 x 16 x 16cm; 4.3kg
• Box type: Cavity, summer

 

3. Improved Crevice Bat Box (Double Crevice)

• Made from: FSC Plywood
• Dimensions: 33 x 16 x 10cm; 1.4kg
• Box type: Crevice, summer

 

4. Eco Kent Bat Box

• Made from: Recycled plastic, FSC wood
• Dimensions: 52 x 23 x 16cm; 4.5kg
• Box type: Crevice, summer

 

5. Chavenage Bat Box

• Made from: FSC Wood
• Dimensions: 38 x 18 x 10cm; 1.2kg
• Box type: Cavity, summer

 

6. 1FS Schwegler Large Colony Bat Box

• Made from: Woodcrete
• Dimensions: 44 x 38 x 38cm; 10kg
• Box type: Large cavity, hibernation and maternity

 

7. Double Chamber Bat Box

• Made from: FSC Wood
• Dimensions: 28 x 16 x 16cm; 1.6kg
• Box type: Crevice, summer

 

8. Vivara Pro WoodStone Bat Box

• Made from: WoodStone
• Dimensions: 25 x 19 x 16.5cm; 4.5kg
• Box type: Cavity, summer

 

9. Improved Cavity Bat Box

• Made from: FSC Plywood
• Dimensions: 38 x 24 x 15cm; 1.5kg
• Box type: Cavity, summer

 

10. Schwegler 1FW Bat Hibernation Box

• Made from: Woodcrete
• Dimensions: 50 x 38 x 38cm; 28kg
• Box type: Cavity, hibernation and maternity

 

Browse our full range of bat boxes for trees and woodland.


The full range of NHBS bat boxes can be found in our online shop, as well as a useful nest box price list which can be downloaded as a pdf.

 

Orison for a Curlew: Interview with Horatio Clare

Orison for a Curlew takes us on a pilgrimage in search of the slender-billed curlew; once a common sight in its breeding grounds of Siberia, but now diminished to a handful of unconfirmed sightings. In this article, one of our book team Nigel Jones, talks to the author, Horatio Clare, about conservation, environmentalism and his hopes for the future of the titular bird.


The author, Horatio Clare

Despite the rather gloomy prognosis for the fate of the slender-billed curlew, your book seems to me about hope. Are you optimistic that conservation will gain ground due to stories such as the plight of Numenius tenuirostris, or do you think this story is more of a prelude of things to come?

It is about hope. I do think the hunger for watching nature footage, and writing and reading about the natural world will translate, given the unavoidable nature of climate and environmental awareness as the world changes, into action. My sense of my generation, currently in our forties, is that we came out of an easy time – the nineties – well aware of how lucky we were, and how things were going with the planet and capitalism generally – and that we have not seen the best of us yet. We have been getting it together, I know of great people in powerful positions, and others doing tremendous work, and I hope things will change for the better. Brexit and Trump are shattering reversals for the world and nature, but not insurmountable. Moreover, it seems the slender-billed curlew may not be on the way out! A population may breed in Kazakhstan and the birds may have been seen and filmed a few years ago in Holland.

Being such a delicate and ethereal creature; do you think the slender-billed curlew was always vulnerable to possible extinction, regardless of human activity; was there a more dominant species pushing it out of it’s niche?

No I am sure we are the dominant species which pushed it out, by draining marshes and polluting the water. It was surely vulnerable in that it is highly specialised.

The relentless corrosion of diminishing natural spaces is a strong theme in your book. The argument for development is usually ‘people come first’ and, by definition, wild spaces are mainly unoccupied by people. I would love to see the hundreds of white pelicans, spiralling up to find the thermals that you describe. However, most of us will only see a spectacle such as this on television, or envisage it vicariously. For me this is the paradox of conserving wild spaces for their own sake – how do we get everyone involved with conservation when only a few people ever get to experience what it creates? How do we make wild spaces matter to everybody?

Knowledge of the natural world and knowing what you are looking at can make a walk in the garden, park or road a safari. That is the way you make every space matter: put names and stories on the creatures that inhabit it. Funnily enough I have written two children’s books on the subject! Which makes me think, children’s literature being a kind of menagerie, we all begin as nature-lovers; it’s just that some adults discount the planet’s marvels, and certainly its needs. And of course corporations exist solely to harvest the planet’s riches as quickly as possible, heedless of environmental cost, if they are allowed to be, for the benefit of share-holders. I think some form of cooperativism between individuals and between nations offers the only hope for long-term sustainability.

There are some conservationists that advocate adopting a more laissez-faire approach to extinction, moving priorities to bio-abundance rather than biodiversity and accepting that extinction and invasive species are part of the evolutionary process. What are your thought regarding this way of thinking?

It is a sin to cause the extinction of a species, as Prof Kiss puts it in Orison. To fail to prevent the extinction of a species seems of a different order, if hard to enjoy. If you regard our privilege of dominance as responsibility, then we have a duty to look after all of what used to be called God’s creatures. We should not really accept anything less than bio-abundance and biodiversity, should we?

I really enjoyed meeting all the people in your book; their dedication, passion and commitment to the cause of conservation was wonderfully described, without ever reducing them to parodies or caricatures. For me they represented the ‘hope’ in your book. However, they all seemed at odds with the world, probably viewed by their relative governments as part of an ‘awkward squad’ and their work and funding was often in decline. What would you say to inspire a future generation of conservationist to take up the baton?

With journalism going through tough times, there is no better way to have the fun and the interest of being the awkward squad, travelling the world, getting up the noses of baddies and making the planet a better place than becoming an environmentalist! What a blessed and admirable profession! What adventure it offers! And…the happiest people you meet are naturalists and environmentalists, on the whole, though they deal in tragedy and folly often.

Licenced under CC BY SA 3.0, Naturalis Biodiversity Centre
Numenius tenuirostris Vieilliot, 1817

The hunting for sport, the mist nets and the bird markets make for a very threatening environment for migrating birds. However, it’s the drainage of the marshes for agriculture and the encroachment and contamination of heavy industry that you more frequently allude to as the biggest threat. Do you see hunting as a potential partner to conservation, or are those two pursuits always going to be in conflict?

Having just read Bowland Beth: The Life of an English Hen Harrier by David Cobham I feel hunting is unhelpful, if not abominable, but that may be a grouse-centric view. In Greece the numerous hunters are thought of with something like revulsion by some conservationists; the hunting I saw while living in Italy was an absolute disgrace. No doubt many hunters are great and ardent conservationists. Unfortunately many are not.

The slender-billed curlew sightings in recent history are difficult to verify. What are your hunches about their authenticity and when was the last recorded sighting that you believe was accurate?

The birds filmed in Holland in 2013 seem genuine but I am no expert. I believe they are seen – and recorded – now and then. I heard a report from Oman, but a confirmed sighting is a tricky thing: it seems you need two or more photos and absolute proof. My friend Istavan Moldovan is cautious about the 2013 footage – as I write he is chasing relict populations of Apollo butterflies in the Carpathians in Romania. Does that not sound like a great career?

The last question is a simple one, but maybe the most difficult to answer. I know you certainly hope so, but do you believe Numenius tenuirostris will ever be seen again?

I absolutely do. I am quite sure they are out there and it is my dream to see one! Thank you so much for your wonderfully intelligent and acute questions, quite the best!


Orison for a Curlew, written by Horatio Clare and illustrated by Beatrice Forshall, is published by Little Toller Books and is available in paperback and hardback.

Little Toller was established in 2008 with a singular purpose: to revive forgotten and classic books about nature and rural life in the British Isles.

Their Nature Classics Library series was established to re-publish gems of natural history writing, with up-to-date introductions by contemporary writers. The success of the series has now developed into a publishing programme which includes a series of monographs by authors like Fiona Sampson, John Burnside, Iain Sinclair and Adam Thorpe as well as stand-alone books – all attuned to nature and landscape and aimed at the general reader.

Each Little Toller writer brings something new to the series – but it’s always characterised by a deep understanding of the subject, combined with wonderful writing.  A sense of the personal reaction to the natural world is imperative. Little Toller also pay a great deal of attention to the aesthetic of their books, using artists to complement the writing to create a beautiful object, befitting Little Toller’s high publishing standards.

Little Toller is now preparing its books for the latter part of the year, notably the first ever biography of the legendary but enigmatic J A Baker, author of The Peregrine, and access to the new Baker archive has led to important new insights into his life. 2018 will see new books from Tim Dee on Landfill, a book about Ted Hughes and fishing called The Catch, and an examination of the landscape of the north of the Irish republic from Sean Lysaght. Little Toller’s sister charity Common Ground is also working on a large exhibition at the Yorkshire Sculpture Park next year, for which there will be a raft of publishing.

 

The NHBS Guide to Whale and Dolphin Watching

Public sighting records are important for UK cetacean conservation. Atlantic Bottlenose Dolphins by Jo Garbutt is licenced under CC BY 2.0

Catching a glimpse of a whale or dolphin whilst visiting the coast is a uniquely memorable experience and a few hours spent whale and dolphin watching is fun for all age groups. Plus, your sightings can really make a difference and will add to the growing body of survey data collected for the UK coastline.

Keep reading for some tips on when and where to watch whales and dolphins, how to get started and where to report your sightings.

When and where should I watch cetaceans and what am I likely to see?

The best time for spotting cetaceans is between April and October when visitors to our coastal waters are at their highest. Some areas are undoubtedly better than others for catching a glimpse of these elusive animals: Devon, Cornwall and Cardigan Bay in Wales are good places to go, as well as the coasts of northern Scotland.

Twenty-nine species of cetacean have been recorded in UK waters, and some areas of our coastline are home to permanent populations of dolphins. The most commonly reported species are bottlenose dolphins, harbour porpoises and minke whales, although rarer visitors have included killer whales, humpback whales and striped dolphins.

Of course, cetaceans aren’t the only things you will see. Keep your eyes peeled for seals too and enjoy the seabirds and beautiful views at the same time!

How do I get started watching whales and dolphins?

For most people, watching cetaceans from the land (rather than from a boat) will be the most convenient and economical option. Any place where you can sit comfortably with a good view of the sea will suffice, but if you can make your way to a cliff top then this will provide a better vantage point. Calm, overcast days tend to be the best for spotting cetaceans as the combination of swell, choppy waves and surface reflections can make fins all but impossible to see. For the same reason, the hours following dusk and prior to dawn are the best times of day to go.

A watch is conducted by scanning the surface of the water with the naked eye, switching to binoculars periodically or whenever you notice a disturbance at the surface. As soon as you see something that may be a whale or dolphin, concentrate your binoculars in that area, making sure to scan a little way around in case it surfaces again nearby. Another good technique is to look out for seabirds circling or diving as this may indicate cetaceans feeding just below the surface.

Any binoculars (or a scope and tripod) can be used for sea watches. If you are looking for binoculars specifically for this activity, however, make sure to go with a model that has a large objective lens diameter as this will improve the light transmission and will help with viewing in lower light conditions.

For researchers studying marine mammals, items such as thermal imaging scopes and hydrophones are useful additions to the surveying toolbox and will allow them to find and identify cetaceans in a greater range of conditions as well as enabling more detailed investigation of behaviour.

Where do I submit my sightings?

Several organisations in the UK offer online sighting forms where you can submit information about whales, dolphins and porpoises that you have confidently identified during your watch. Take a look at the Sea Watch Foundation, the Whale and Dolphin Conservation, or the Cetacean Research & Rescue Unit websites for sighting forms. Other regional groups such as the Hebridean Whale and Dolphin Trust and Norfolk Cetaceans also collect local sightings so it might be worth finding out if there is an active recording group near to where you live.

Check out the NHBS website for a great range of binoculars and scopes, as well as other handy field kit such as waterproof clipboards and notebooks. Also have a look at these two field guides to help with identifying whales and dolphins.

Guide to the UK Cetaceans and Seals
Guide to the UK Cetaceans and Seals
Whales, Dolphins and Seals: A Field Guide to the Marine Mammals of the World
Whales, Dolphins and Seals: A Field Guide to the Marine Mammals of the World

 

The Importance of Nest Sites for Birds and Bees

Changes in land use can result in strong competition between species that have historically survived alongside eachother, such as goldfinches and chaffinches. Goldfinch by Tony Smith is licenced under CC BY 2.0.

Over the last century, land use in the UK has changed drastically. Small mixed-crop farms, traditionally separated by lanes, hedgerows and wild meadows have been replaced with larger, more specialised facilities. At the same time, the density of grazing animals such as sheep and cattle has also risen substantially. This combination of land-use change and agricultural intensification has contributed significantly to habitat degradation and biodiversity loss, and has led to huge, often dire, changes for the wildlife that call these places home.

Understanding these processes is of huge importance to conservationists, and a considerable amount of research has been conducted into the broad scale effects of land use changes on biodiversity. It is less well understood, however, why seemingly similar species can be affected to a different extent by local changes in their habitat.

A recent study, conducted by Dr Andrew Higginson at the University of Exeter, suggests that competition for nesting space may be a key factor in the differences observed. His study used a mathematical model to predict the likely outcome when populations of birds and bees are faced with a reduction in suitable nesting sites. Results indicated that larger, earlier-nesting species tend to fare better in these conditions, but at the expense of smaller, later-nesting species who, in the real world, would either fail to find a nesting site or be forced into using a poor quality or risky location.

Dr Higginson’s results illustrate that, whilst two or more similar species can co-exist together very happily when there are sufficient nesting spaces available, as soon as these become limited, competition and conflict become inevitable. In severe situations, species that have historically thrived in the same environment may suddenly find themselves battling for survival.

A key message from the study was that conservation efforts should ensure that priority is given to the creation and maintenance of suitable nesting sites. Conservation practices often focus on provision of food for wildlife, such as planting wildflowers for bees and providing food for our garden birds. Preserving and creating safe and accessible places for these animals to nest, however, is just as critical if we are to ensure their continued survival.

Head over to www.nhbs.com for our full range of bird nest boxes and insect nesting aids, or download our full nest box price list.

 

A New Home for Old Pallets

Preparing pallets for the walkway. Photo by David Price.

The accumulation of stacks of pallets is an unavoidable part of working in a fast paced and varied retail environment. So when we were contacted by Keith Grant from the Slapton Ringing Group to ask if they could take some off our hands, we were both delighted to agree and eager to learn about the site where they would be put to use.

The Slapton Ringing Group is based at the Slapton Ley National Nature Reserve. This beautiful site is located on the south coast of Devon and contains the largest lake in the south west, separated from the sea by just a narrow shingle bar. Its location, together with the unique habitat conditions, makes it an extremely important place for local and migrating bird populations.

A job well done. The completed walkway leading to the ride. Photo by David Price.

The Slapton Ringing Group have been surveying birds at Slapton Ley since the 1960s, and for the last six years the site has been designated as a BTO Constant Effort Survey (CES) Site.

A regular rotation of willow cutting is undertaken at the site, which maintains the vegetation and helps to avoid major changes in species composition. A carefully constructed pallet walkway allows access to the ringing rides for the volunteers that meet here regularly throughout the ringing season.

The pallets salvaged from NHBS were used to replace old ones which have an obviously limited lifespan due to the constantly wet conditions. It is a pleasure to know that some of our “waste” is being used to support such a fantastic and long-running project.

For more information about bird ringing in Devon, take a look at the Devon Birds website.

Kaleidoscope 4.3.0 Bioacoustic Software Now Available

The newest version of Kaleidoscope, version 4.3.0, is now available to download from the Wildlife Acoustics website.

See below for details about the new features included in this release, as well as a handy table to see which version of Kaleidoscope is right for you, and some useful tutorial videos.

New features include:

New Bat Auto-ID Classifiers
New bat classifiers for North America, Neotropics, Europe and South Africa as well as updated common names for some species. The default setting for classifiers is now “Balanced” which is a useful compromise between the more sensitive and more accurate options.

New time-saving workflow features
New features in the results viewer window include:
• When opening a saved results spreadsheet, a file browser allows you to easily locate the folder containing the corresponding input files
• Bulk ID multiple selected rows
• Bulk copy files in selected rows to a specified folder

Full support for GUANO metadata (Kaleidoscope Pro only)
Kaleidoscope now reads and write GUANO information alongside Wildlife Acoustics metadata (WAMD).  This will been shown in the file at the end of the metadata notes window.

Bug fixes
Several bugs have also been fixed in the new release, details of which can be found in the Kaleidoscope documentation.

Which version of Kaleidoscope is right for me?

Kaleidscope Tutorial Videos


Kaleidoscope UK, Kaleidoscope Neotropics and Kaleidoscope Pro are all available to purchase from NHBS.