NHBS Field Sessions: Waterway Surveys for Daubenton’s Bats

NHBS’ staff members are wild about wildlife! To showcase this, we are encouraging our team to write blogs about their experiences with nature.

During the Summer months, Jon Flynn, a member of NHBS’ Wildlife Equipment Team attended a number of Waterway Surveys for Daubenton’s bats (Myotis daubentonii). Read more about his survey experiences below:

Stretch of the River Teign captured by Westcountry Rivers Trust via Flickr (CC BY 2.0).
Stretch of the River Teign captured by Westcountry Rivers Trust via Flickr (CC BY 2.0).

“On Monday 6th July I took part in a Waterway Survey for Daubenton’s bat along a stretch of the River Teign in Devon. The survey is completed twice per year in conjunction with the Bat Conservation Trust and is part of an ongoing data collection programme for bat species around the UK. The lead for this particular survey was John Mitchell who has been surveying this particular length of the Teign, near Teigngrace, for a good number of years. It was my third survey there.

The survey was due to start 40 minutes after sunset, so we met at 9.00pm and made our way along the edge of a maize field to arrive at our first stopping point. This was to be a transect survey which meant walking a length of the river bank and stopping at ten predetermined points to record bat activity at each one. We stood at the river’s edge and immediately noticed that the river level was a lot lower than it was during our last visit a year or so ago. We recorded air temperature and cloud cover and, as we prepared, various species of bats could already be seen zooming around the trees and openings as they commenced another night of nocturnal foraging. The air was very warm, still and humid, and flying insects were everywhere including a host of moths and some less welcome biting species.

As the light faded it was time to start. With bat detectors switched on and earphones in place, we directed a torch beam on the river’s surface and awaited the arrival of the first Daubenton’s.

Looking for bats at twilight by Nic McPhee via Flickr (CC BY 2.0).
Looking for bats at twilight by Nic McPhee via Flickr (CC BY 2.0).

The Daubenton’s bat is a species which typically occupies riparian woodland.  They often roost in trees along the river bank and hunt by skimming low over the surface of the water for insects. They can take prey from the water’s surface using their feet or tail membrane.

As bats skimmed through the torch beam we were able to count them. We counted the number of passes that we observed and for this a clicker counter is always useful! The bats that we heard but did not see were also recorded as additional information. I set my Magenta 5 at 50hz and listened whilst John relied on his trusty and more accomplished Bat Box Duet.

After four minutes on the stopwatch we finished counting, compared counts and wrote down results. At stop number 1 there were certainly bats present, but they were swooping around quite high above the water surface and not showing the typical behaviour of Daubenton’s – John was dubious that they were our target species so we recorded them only as potential sightings.

Using GPS devices and torches we left for Survey Point 2 further down the river bank and repeated the same process as before. At this location there was no denying that these WERE Daubenton’s bats, as the torch beam caught their pale almost white ventral fur, confirming their identity. Our detectors were full of noise too, including the typical intense zap as a bat homed in on prey.

A close-up of a Daubenton's bat. Image captured by Gilles San Martin via Flickr (CC BY 2.0).
A close-up of a Daubenton’s bat. Image captured by Gilles San Martin via Flickr (CC BY 2.0).

On we progressed with eight more stopping points to go. Occasionally our river bank scrambles took us through thickets of invasive Himalayan balsam (Impatiens glanduliferaand Japanese knotweed (Fallopia japonica) a sobering reminder of how our countryside is changing. The night remained still and warm and it almost felt like we were in a different country.

After eight more stops my watch said 11:20pm. It was good to see that bats were in profusion that night, as John stated ‘It was one of the best ever totals, with one stopping point recording over 50 passes!‘.

Two weeks later and we repeated the process. But this second night felt noticeably cooler and there were fewer insects on the wing. Nevertheless bats were still out and about in reasonable numbers and an average score was calculated between the two Waterway surveys.  Overall there were encouraging signs that the Daubenton’s bat continues to do well along this particular stretch of the Teign.”

To find out more information about the various bat detectors available, go to our website. To find out more about how you can help bats in your local area, have a look at our handy guide.

If you like the idea of taking part in Waterway Surveys (or other kinds of bat surveys) then contact the Bat Conservation Trust or have a look at their website here. It’s great fun and you can put your bat detector to important use!

An NHBS field trip – searching for Nightjars

This week a small group of us took a trip to Dartmoor to try and catch a glimpse of Nightjars. As well as getting a chance to see one of the UK’s most elusive birds this was also a great opportunity to field test some of the equipment we sell.

Heading out to Dartmoor in the evening. Image by Oliver Haines.

Nightjars are cryptic, nocturnal birds that arrive in the UK in May to breed before migrating south in September. For the best chance to see these amazing creatures you need to head to heathland, moorland or open woodland on a warm, still evening. If you are early enough in the season you may also get a chance to see the males displaying, showcasing a repertoire of wing claps and churring.

This great selection of equipment meant that we could look out for bats and moths as well as Nightjars. Image by Oliver Haines.

So what did we pack for an evening of Nightjar watching? Our kit bag is below:

Wildlife Equipment Manager Steve sets up the SM4 Acoustic Recorder. Image by Oliver Haines.

Looking for moths using a simple torch and white sheet. Image by Oliver Haines.

At the site we visited we were lucky enough to see 2-3 males displaying and, despite the low light conditions, the binoculars were extremely useful for picking out individuals on branches. We were also able to capture some great audio recordings with the SM4 Acoustic recorder which we deployed for a few hours. A sample audio clip from the SM4 can be found below. The Tascam allowed us to record as we watched the nightjars displaying, giving us the chance to record all parts of the display. During the walk back we started up a couple of the bat detectors and were greeted by a few different species including noctules and pipistrelles.


Images by Oliver Haines and from Nightjars of the World.

What would we take next time?

A parabolic microphone (Telinga PRO-X or Hi-Sound Mono Parabolic Microphone) would have been extremely useful for getting some high-quality recordings. Although the Tascam worked well by itself, a highly directional parabolic microphone would have allowed us to get higher quality recordings and reduce background noise.

The binoculars performed fairly well given the low light conditions but on the next trip I would be really interested in testing a night vision scope such as the Pulsar Digiforce 860RT as a way to try and spot perched nightjars later into the evening.

Nightjar chicks in their nest on the ground. Image by Oliver Haines.

We had a great evening observing these fascinating birds and I highly recommend it. Nightjar populations have been recovering recently but they are still an amber listed species. They are highly sensitive to habitat change and, since they nest on the ground, are particularly vulnerable to disturbance from people and dogs. So if you decide to go and observe the Nightjars displaying this summer please be mindful, stick to paths and keep dogs on leads. More information on Nightjar conservation and identification can be found on the RSPB website.

Listening In The Field: Thoughts on Field Recording

Separating the Signals From the Noise
Image from Wild Soundscapes: Discovering the Voice of the Natural World

 

 

 

 

 

NHBS equipment team member Johnny Mitchell, developed a keen interest in sound design and field recording whilst studying contemporary music. He continues to be fascinated by the technical challenges of field recording and its use for ecologists. With the recent publication of Joeri Bruyninckx’s Listening In The Field, interest around this subject continues to grow, so Johnny has provided some thoughts about the art of wildlife sound recording along with some excellent book recommendations.

‘In its broadest sense, field recording is the act of capturing sound outside of a traditional recording studio environment.

We live, it seems, in a culture that values vision and image above all other senses. In our increasingly noisy society, and as the cacophony of human-induced noise increases around us, it can be easy to forget the value of simply listening as a way to engage with the natural world.

One of the most evocative and earliest examples of field recording can be can found in the BBC recordings of Cellist Beatrice Harrison who, whilst playing in the garden at her home in Oxted, Surrey, noticed that the nightingales in the woods around her responded to, and even echoed, the notes of her cello. Broadcast just two years after the Birth of BBC radio in the early 1920’s, it was the first time that wildlife had been broadcast over live radio in the UK, and it proved to be so popular that the recordings were repeated every spring for the following 12 years.

Listening In The Field: Recording and the Science of Birdsong
Hardback | May 2018
£26.99

 

 

Advances in high-quality, portable audio equipment have led to a fascinating cross-pollination between artists, musicians and scientists. In his new book, Listening in the Field, Joeri Bruyninckx traces the development of field recording and its use in field ornithology. Drawing on expertise from experimental music to serious science, it provides a thorough and wide-ranging investigation into the power of sound and listening.

Anyone looking for further reading on the subject would do well to look to the work of Bernie Krause; in particular The Great Animal Orchestra and Wild Soundscapes.

In The Great Animal Orchestra, Krause, a former musician/composer and now leading expert in soundscape ecology, details his experiences in over 40 years of collecting wild soundscapes and explores what these can tell us about the health of various biomes.

 

Wild Soundscapes offers the reader both a philosophical guide and practical handbook- it is a highly readable and invaluable guide into the many techniques and different types of audio equipment available to anyone making their first forays into the field.

 

Krause encourages us to take a widescreen view of the soundscape as a whole rather than focusing on single species. Whilst listening to his recorded sounds and visualising them using spectograms, Krause also developed his ‘niche hypothesis’ – discovering that many creatures have developed temporal and frequency niches in which to communicate. What we would perceive as a chaotic web of sound is, he argues, highly ordered, and organisms in a soundscape structure their vocalisations over both frequency and time.

Tragically, over half of the soundscapes in Krause’s archive have either been dramatically altered by human activity or silenced altogether. However, as interest and technology advance it is fair to say that we are coming to understand and value the natural soundscape around us and our effect upon it’.

Field Recording Equipment

At NHBS you will find a great range of microphones, recorders and accessories for field recording.

Hi-Sound Mono Parabolic Microphone
H2a Hydrophone

 

 

 

 

 

 

 

Sennheiser MKH 416-P48 U3 Microphone
Basic Stereo Hydrophone

 

 

 
Tascam DR-05 Handheld Recorder
Tascam DR-40 Handheld Recorder
Further reading:

The Sound Approach to Birding: A Guide to Understanding Bird Sound
Hardback | Dec 2006
£29.95

 

In The Field: The Art of Field Recording
Hardback | May 2018
£11.99

 

 

Further listening:

Browse our range of wildlife audio CDs and listen to the sounds of the Amazon, the pure voice of the nightingale or the frog calls of Madagascar.  Find the full list here.

 

Enjoy being in the field, there really is plenty to listen to.

 

Please note that prices stated in this blog post are correct at the time of publishing and are subject to change at any time.

 

NHBS Staff Picks 2017

Welcome to our annual round-up of the books and equipment we have most enjoyed reading and using this year, all chosen by members of the NHBS team. Here are our choices for 2017!

Winter Birds

Winter Birds

In Winter Birds, we find Lars Jonsson’s loving portraits of some of the birds that he observed in southern Gotland in the winter months; both the watercolours and the accompanying essays are wonderfully intimate and personal. A fascinating book to dip into on cold and windy evenings, even if (like me) you don’t know your finches from your jays. First published in Swedish two years ago, this is now available in a UK edition, with range maps for both Sweden and the British Isles alongside each species. Expertly translated by David Christie, this is one of my favourite books this year.
Anneli – Senior Manager

Orison for a Curlew: In Search of a Bird on the Brink of Extinction

The Slender Billed Curlew, Numenius tenuirostris, is emblematic of species decline and ultimately extinction. With the last fully-fledged sighting in Morocco in 1995, naturalist and traveller Horatio Clare took up the challenge of sighting this ethereal creature. With precision and clarity and in only 115 beautifully written pages, this book takes the reader on an immersing journey into history, politics, hunting and conservation.
Nigel – Books and Publications

Field Guide to Moths

Field Guide to the Moths of Great Britain and Ireland

As a newbie to the world of moths, this book is a definitive and indispensable guide to UK species (excluding micro-moths). With in-depth descriptions and distribution maps for each species and beautifully clear and concise illustrations, this newly updated guide is a valuable resource and must-have mothing companion, perfect for beginners and pros alike.
Oli – Graphic Designer

Why We Sleep

Why We Sleep: The New Science of Sleep and Dreams

Picking my favourite book of the year wasn’t easy this time, having stepped up my reading efforts this year. But since there has to be one: Why We Sleep is an exceedingly well-written book about the biology of human sleep, and especially the deleterious effects of chronic sleep deprivation that most of us subject ourselves to. Matthew Walker is a gifted writer with a knack for explaining neurobiological principles in clear language and using imaginative metaphors. It actually made me undertake some very serious attempts to change my sleeping habits.
Leon – Catalogue Editor

The Lost Words

For anyone even vaguely interested in nature writing Macfarlane needs no introduction.
His series on landscape, place and imagination has enthralled me since I first picked up The Old Ways several years ago.
Created in response to the nature-related words culled from the Oxford Junior Dictionary, words which are considered no longer relevant to a modern childhood, Macfarlane along with artist and author Jackie Morris have created a beautiful ‘spell book‘ for younger readers. A joyful celebration of both nature and language.
Johnny – Customer Services

Dinosaur MonopolyDinosaur Monopoly

Everyone at the NHBS board game club loved Dinosaur Monopoly. A new take on an old favourite, though we all agreed the T-Rex should not be the Mayfair of this board! Have fun excavating sites, bartering for ownership and making (or losing!) the big bucks!
Natt – Customer Service & Dispatch Manager

 

Petzl Tikka Headtorch

The Petzl Tikka is a brilliant head torch – with a light output of 200 lumens, you really get a lot of light for your money! Having five different light settings, it’s great for close up work, and with a range of 60m is ideal for night running/orienteering (with the added bonus of being weather resistant). From personal use, I would highly recommend this to anyone who is after a high quality head torch for a very reasonable price.
Sam – Customer Services

Mushrooms and Toadstools

Mushrooms and Toadstools of Britain & Europe: Volume 1

Mushrooms and Toadstools of Britain & Europe is the long-awaited field guide by Geoffrey Kibby, the highly respected field mycologist. This title stands out from other fungi guides with its detailed and comprehensive identification and field notes, but for me the real highlights are the gorgeous illustrations and diagrams running through the whole text. One doesn’t have to be a serious mycologist to appreciate the beauty of fungi as presented in this book!
Rachel – Customer Services

Kite Caiman Binoculars

Kite Caiman Binoculars

My pick is the 8 x 42 Kite Caiman Binoculars, which are our newest edition to the Kite binocular range. They have an amazing close focus and far reaching power, they’re affordable, bright, and are great quality. The Caimans make the ultimate pair of binoculars in the field for anyone on a budget.
Bryony – Wildlife Equipment Specialist

Squid Empire

Squid Empire: The Rise and Fall of the Cephalopods

Covering hundreds of millions of years, Squid Empire tells the fascinating story of how the squishy squids we have in our ocean today became what they are. Written with humanity and wit this book is extremely approachable, even by a layperson such as myself.
Luke – Web Developer

The Plant Messiah

In his time working at Kew Gardens, Carlos Magdalena has managed to track down and propogate some of the world’s most threatened plant species. Many of these success stories are shared in The Plant Messiah and all are recounted in Carlos’s enthusiastic and charismatic style. Part memoir, part “botany-101” and part plant elegy, I found this book difficult to put down, and whizzed through it in just a day or two. It is inspiring, thrilling and educational – what more could you ask for?
Luanne – Senior Editor

Kaleidoscope Pro annual subscriptions now available

Kaleidoscope Pro is now available as an annual subscription, providing an economical way to access the excellent analysis features of this software.

A discounted package is also available for students or academics who buy a subscription using an official university purchase order.

Each subscription will give you access to the software for 366 days and an automated email will remind you to renew at the beginning of the month that your current subscription is due to expire.

For customers who have purchased a copy of Kaleidoscope Pro in 2017, Wildlife Acoustics are offering you the chance to convert this to an annual subscription. Depending on when your software was purchased, you will be entitled to a one, two or three-year subscription (see the table below). This offer is valid until the 31st January 2018.

To take advantage of this offer: When Kaleidoscope Pro 4.5 is launched, you will receive a popup window notifying you of the conversion offer. You will be able to accept or decline at this time. If you choose to accept, your permanent license will be deleted.

Echo Meter Touch iOS 11 Firmware Update

Wildlife Acoustics have recently been investigating a problem where first generation (black) Echo Meter Touch units are not working with devices running iOS 11. They have now developed a firmware update which will fix this issue.

Affected models will need to be returned to one of the Wildlife Acoustics service centres: these are located in the US, Australia and the UK. The update will be performed free of charge and your device shipped back to you as quickly as possible.

Only modules with serial numbers greater than EMT00494 are affected. Second generation (red) Echo Meter Touch 2 units are not affected.

Please use the following links to download a return form:
US and Australia repair form
UK repair form

Once units have been updated, any further alterations to the firmware will be able to be performed using a normal app update.

As a gesture of goodwill, Wildlife Acoustics will be donating US$10 for each module that is repaired before 31st January 2018, split between Bat Conservation International and the Bat Conservation Trust.

 

pH Meter Calibration and Maintenance

pH Meters
A pH meter is a key part of the field and lab worker’s tool kit.

Modern pH meters are extremely efficient and provide highly accurate results if they are well looked after and correctly calibrated. A key part of this is taking care of the pH electrode. In this post we will discuss how you can maintain the accuracy and lifespan of your equipment by following correct pH meter calibration, cleaning and storage guidelines.

The main components of the pH meter are the glass electrode and reference electrode which are housed together inside a thin glass membrane. The pH meter calculates pH by measuring the difference in potential, or voltage, between the two. A well cared for electrode will last for up to two years, although use at very high temperatures or with abrasive chemicals may reduce this. It is also important to make sure that you have the correct meter for your sample type: for example, a pH meter designed for use in soil samples will have a different electrode type to one which is designed for liquids.

To maximise the lifespan of your electrode and ensure that it provides consistently accurate readings, a small amount of care and attention is required. Below we answer the most common questions relating to pH meter calibration and care.

How do I calibrate my pH meter?

193227pH meter calibration requires two or more pH buffers. A buffer is a solution of known pH which is used as a standard to ensure the electrode is producing accurate results. The most commonly used buffers are pH 7.0, 4.0 and 10.0. Some pH meters will require two buffers for calibration whilst others require three or more. If you are using only two buffers then you will begin your calibration with the pH 7.0 solution and then use either pH 4.0 or pH 10.0 as your second buffer, depending on whether your sample is acidic or alkaline respectively.

The instructions provided with your meter will detail the calibration process. In general, this will involve dipping your electrode into a buffer and waiting for the reading to stabilise. You will then adjust the pH meter to read the correct pH on the display or, if your meter features automatic calibration, it will automatically adjust itself. This process is repeated with the following buffer(s) until the process is complete and the meter is ready to use. Always remember to rinse your electrode in distilled water between different buffer types and make sure to read your manual carefully before calibrating the meter for the first time.

Buffer solutions are available to purchase in 500ml bottles or as packs of 20ml sachets. Sachets are ideal for infrequent use or for use in the field.

How do I clean my pH electrode?

227513Cleaning your electrode will ensure that it stays in optimum condition and will help to maintain accuracy and efficiency. To use a cleaning solution simply place your electrode in it for 15 to 20 minutes then rinse with distilled water and store as recommended below. For pH meters which are designed for use in soil, a cleaning solution for soil deposits is available which will help to eliminate all impurities and residues which are left on the electrode after use.

How do I store my pH electrode when not in use?

180243When your pH meter is not in use the electrode should be kept immersed in storage solution. This stops the electrode from drying out and keeps it clean and protected until required again. Most pH meters come with either a specially designed cap, into which a small amount of storage solution can be added, or they come with a storage bottle which can be topped up with solution. Make sure to check the level of the storage solution regularly as it will evaporate over time. If the electrode is allowed to dry out then it will no longer function correctly and will have to be replaced.

Take a look at the NHBS website for our full range of pH meters, buffers, cleaning and storage solutions. For replacement electrodes, please contact us to discuss your requirements by phoning +44 (0)1803 865913 or emailing customer.services@nhbs.com

 

Made by NHBS – The Ichthyoplankton Net

These bespoke nets, made by NHBS, are being used by ZSL in an ongoing project to monitor juvenile and larval fish populations in the Thames.
The Ichthyoplankton Net

Earlier this year we were contacted by the Zoological Society of London (ZSL) who were interested in working with us to make a bespoke aquatic survey net.

Their specifications required the net to have a square frame with a four point bridle and connections for a flow meter. It also needed to have a diving vane which would ensure that it could be towed stably at a set depth, and a screw on cod end with a bag made from 53µm and 250µm mesh. Following these guidelines, our engineer and seamstress got to work and within a couple of weeks a detailed specification was agreed. The nets were then manufactured and two were sent to ZSL in February.

First draft of the net design

Several months later we were delighted to receive some photos from Anna Cucknell, who manages ZSL’s work on fish conservation in the Thames, showing the nets in use.

 

 

“It was great to work with NHBS, who listened to our specific needs to design bespoke sampling nets for juvenile fish, and used their experience to adapt our designs to fit our needs. Our juvenile fish surveys on the Thames are the first of their kind, in scale and resolution and we hope the results from which will be applicable in the Thames and further afield to help drive conservation and better management of our estuaries for all fish species”.
Anna Cucknell, Thames Project Manager, Zoological Society of London

Ichthyoplankton Net in the Thames
Nets are towed both at the surface and at a depth of two metres. Combined with data from seine and intertidal nets, these surveys provide a comprehensive picture of larval and juvenile fish populations.
Fish Conservation in the Thames

The nets we made for ZSL are being used for an ongoing project to monitor the use of the Thames by juvenile fish.

The Tidal Thames is home to more than 100 fish species including many that are commercially important such as Dover sole and European seabass. It also provides critically important habitat for rarer species, including European smelt and European eel.

Like most estuaries, the Thames provides invaluable spawning, migratory and nursery grounds but, despite this, the region is poorly studied. The ZSL project hopes to remedy this by providing essential information about the health of fish populations in the estuary, and to assess how these are affected by water quality and local developments.

Boat-based sampling for juvenile fish

The project, funded by Tideway, involves both boat-based and foreshore sampling and, excitingly, also provides an opportunity for volunteers to get involved via its citizen science scheme. Volunteers can help with a variety of tasks including measuring, identifying and counting the fish.

For more information about the Tidal Thames fish conservation project, head over to the ZSL website

Interested in getting involved? Sign up here to volunteer.

Have a bespoke project in mind? Contact our engineer, Thomas to discuss your requirements (email thomashk@nhbs.com or phone 01803 865913).

 

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 respe.

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. Is 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 space. 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; 13.8kg
• Box type: Crevice, summer

 

Ibstock Enclosed Bat Box B3. Ibstock Enclosed Bat Box B: Small

• Made from: Concrete and brick
• Dimensions: 21.5 x 21.5 x 10.5cm; 5.8kg
• Box type: Crevice, summer

 

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

Build-in WoodStone Bat Box7. Build-in WoodStone Bat Box

• Made from: WoodStone
• Dimensions: 50 x 22 x 14cm; 6.2kg
• 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

• 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
Schwegler Barn Owl Nest Box 23
Interior 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


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


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 Box


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


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


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


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


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:
Grey Wagtail Nest Box
Eco Dipper and Wagtail Box
Vivara Pro Barcelona WoodStone Open Nest Box
Traditional Open Fronted Wooden Bird Nest Box


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


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
Schwegler 9A-1 House Martin Single Box
Ceramic House Martin Bowl
Slide Out House Martin 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 32mm Oval 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
Schwegler Jackdaw Nest Box 29


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
Schwegler Kestrel Nest Box 28
Kestrel Open Nest Box


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:
Schwegler Kingfisher and Sand Martin Nest Tunnel
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:
Wooden Little Owl Nest Box
Schwegler Little Owl Box 20
Schwegler Little Owl Box 22
Little Owl Apex Nest Box


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


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


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:
5KL Schwegler Nuthatch Nest Box
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 32mm Oval Nest Box


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


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:
No. 19 Schwegler Dipper and Pied Wagtail Nest Box
1HE Schwegler Brick Box
Apex Robin Box
Vivara Pro Barcelona WoodStone Open Nest Box
Traditional Open Fronted Wooden Bird Nest Box


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
Schwegler Kingfisher and Sand Martin Nest Tunnel


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


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 eachother.
• Suitable boxes:
No. 10 Schwegler Swallow Nest
WoodStone Swallow Nest Bowl
Ceramic Swallow Bowl
9A-1 Schwegler House Martin Single Box


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 and Timber Swift Nest Box
Vivara Pro Burgos WoodStone Swift Nest Box
No. 17B 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


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