Hoopoe – A blog by nhbs – Page 59 – The NHBS Conservation Hub

The NHBS Harp Trap

The NHBS Harp Trap

Earlier this year we were delighted to launch another exciting product manufactured here at our base in Devon. After a concerted period of design and manufacturing effort by our expert Workshop Team, followed by testing and review by ecological professionals, our NHBS Harp Trap was ready for production. The launch of our product into the wildlife equipment market signals the arrival of the only commercially produced harp trap in Europe.

What is a Harp Trap?

A harp trap provides an alternative bat survey method to mist netting or the use of bat detectors. They are particularly useful in situations where bats in flight can be channeled through a natural funnel such as above a water course, a cave or mine entrance or a clear area within a forest.

Harp traps consist of a frame which is either freestanding or suspended, and supports two to four rows of nylon strings. The bats will fly into the nylon strands and then fall unharmed down into a collecting bag below. The catch bag is made from green cotton canvas that is water resistant and breathable and includes heavy duty clear plastic baffles to prevent the bats from escaping. Unlike mist nets, harp traps do not entangle the bats an it has been reported that they can be more effective for surveying bats, potentially capturing higher numbers of individuals.

The NHBS Harp Trap

The new NHBS Harp Trap is a three-bank trap, meaning it has three rows of nylon line. Our trap has a catch area of approximately 4m₂and catch bag which is around 60cm deep. It folds down neatly into a bespoke carry bag and weighs approximately 15kg-full specifications and dimensions are below. The trap takes two people around 10 minutes to assemble and stands on four sturdy, extendable legs and which can be arranged at the height that you need the trap to be. There is also the option to anchor the harp trap with guy ropes in windy conditions. The trap can also be adapted to be suspended if this is required.

Our trap has a few innovative features designed to make assembly and disassembly easier. Firstly the strings are wrapped around a winding mechanism which greatly reduces the stress and time-consuming act of sorting through tangled lines in the dark.

There is also an extension under the catch bag, which prevents the bats from flying underneath the trap and this doubles as protection for the component parts as it wraps around the disassembled trap when it is stored in its bag.

Dimensions:

Catch area: 4m2 approximately
Catch area L x W: 180 x 225cm
Length: 180cm
Catch bag depth: 60cm
Catch bag width: 44cm
Weight: 15kg

Folded dimensions (in carry bag)
Height: 46cm
Length: 200cm
Width: 22cm

Operational dimensions
With legs fully retracted:
Height 314cm
Width (at base): 62cm
Length (at base): 230cm
With legs fully extended:
Height: 372cm
Width (at base): 100cm
Length (at base): 252cm

Testing

As our harp trap evolved, prototypes were trialed and reviewed by ecology professionals; Professor Fiona Mathews of Sussex University and Neil Middleton of Batability. Their expertise and excellent feedback helped us develop our the harp trap to the point that it was now ready to go live.

The team at NHBS have done an excellent job in coming up with a new and refreshing approach to harp trapping, which shows many innovative and useful design features. When testing the equipment we were able to demonstrate that it was quicker/easier to assemble than competitor’s products. We are happy to recommend this harp trap, and will be ordering one ourselves, to be used during our training courses and for bat-related research.
Neil Middleton, BatAbility Courses & Tuition

The Law

Harp traps can only be sold to those who are licensed to use them. If you hold such a licence, we will ask to see a copy of your NE, NRW or SNH licence when you contact us about your purchase. If you are purchasing from overseas, we will request details about your institution and research.

NHBS Manufacturing

NHBS manufactures marine, freshwater and terrestrial survey tools, all carefully designed to meet the demands of researchers, consultants, public authorities and educators in the environment sector. Made by our team of expert engineers, fabricators and seamstresses, our products have become renowned for their quality, durability and affordability.

Find out more about our manufacturing.

Key accessories for using alongside your harp trap

The Petzl Tikka Headtorch is a high-power and easy to use headtorch that can produce a light beam with a brightness of up to 300 lumens. It is available in four colours and can be powered with either three AAA batteries (included) or using the Petzl CORE rechargeable lithium-ion battery.

The Kite LED Loupe Triplet Hand Lens 10 x 21 provides crystal clear images which are enhanced with its ring of LED lights. This product may prove invaluable when trying to identify some of the tiny distinguishing features of certain bat species.

The A4 Portrait Waterproof Clipboard allows you to write in the field without having to worry about the rain. A waterproof plastic covering system helps to keep your paper dry and can be closed over the clipboard with the strong velcro fastener.

Books

The Bats of Britain and Europe

Paperback | Sept 2018

The Bat Workers’ Manual

Paperback | July 2012

Field Guide to Bats of the Amazon

Paperback | Feb 2018

The NHBS Guide to Hand Lenses

The possession of a hand lens is one of the defining characteristics of a naturalist.

We use them for everything from peering at beetle genitalia and examining floral characters, to examining the arrangement of teeth in small mammal jaw bones. There are a wide variety of hand lenses on the market so how do you decide which lens is best for you? This article contains all the information you need to make an informed choice.

Glass versus plastic lens?

The optic in a hand lens can be made from glass or plastic. Serious naturalists and professionals will always choose a glass lens. Plastic lenses are generally more affordable and lighter but are of lower optical quality and are more difficult to clean. Plastic hand lenses and magnifiers, however, can be a good choice for schools and young children, for these users have a look at the Hand Held Magnifier.

How many optical elements?

An element is an individual piece of glass within a lens. When you look through a high quality camera lens you will typically be viewing what’s in front of the lens through four to six lens elements, as well as other elements used for focusing and zooming (see image below right).

Hand lenses are constructed with one (singlet), two (doublet) or three (triplet) lens elements. Each one is specially shaped to correct for a particular type of optical distortion, so the more elements, the higher quality the image.

The highest quality lenses that we offer are the triplet products made by Kite and Belomo. These offer a bright, crystal clear and undistorted view of your subject. The images afforded by these optics will impress the user whatever their field of work is, be it geology, entomology or botany.

N.B. There is a brand of hand lens / loupe called “Triplet”. Please note that despite the brand name this popular product has one lens (singlet).

If you are interested in obtaining a doublet hand lens you should consider those that are manufactured by Opticron and also Kite. Opticron will be a familiar name if you have ever researched the purchase of a pair of binoculars and their hand lenses provide excellent distortion free magnification at 6x, 10x and 15x.

Magnification

A 10x magnification hand lens will be more than adequate for most purposes. Higher magnification lenses tend to be harder to use but are very useful for viewing extremely small objects. If you are unsure of which magnification you need, or think you may need several different lenses, you might consider the Triple Hand Lens (x3, x4 and x5).

Lens diameter

Large diameter lenses provide a wider field of view which means that they are easier to use but they are slightly more expensive to produce.

How hand lenses are named

Hand lenses are named in the same way as binoculars, with both the lens diameter and the magnification included in the name. For example, the Opticron Hand Lens, 23mm, 10x Magnification has a 23mm diameter lens and provides 10x magnification.

LED Option

Some hand lenses such as the LED Triplet Loupe Hand Lens 10x 21mm possess LED lighting in order to illuminate the object that you are viewing. This option can greatly improve your viewing experience and can be particularly valuable in low light conditions. Bat workers have expressed how useful these can be when looking for the key identifying features of a specimen held in the hand. Using a lens with LED can reduce stress on the bat because it means that you do not have to point the beam of your head torch directly at the animal.

Using your hand lens

Finally, a quick note on hand lens technique. To use your hand lens correctly, hold the lens close to your eye and then either a) move the subject closer to your eye until it comes in to focus or b) move your head (and the hand lens) closer to the subject until it comes into focus. The magnification of your lens will affect your positioning, as the higher the magnification, the smaller the focal length (the distance between the lens and the object) will be.

Getting the light right is also an important part of using your hand lens. You need a good source of light. Ideally, bright daylight but other bright light sources such as ceiling lights are sufficient. The light should be between your lens and the object, pointed at the object and not the magnifier. Any reflection on the lens can obscure the focus. This may require a little experimenting with your positioning until you get it right. It’s easy with a little practice so don’t get put off if you find a new hand lens difficult at first. Expect to get close up to what you’re examining – it’s quite common to see naturalists crawling around on the ground to get close to a plant they’re identifying.

Keeping your hand lens safe

It can be very hard to find a much-loved hand lens dropped in long grass or woodland. To prevent this happening, we recommend a lanyard for your hand lens – if you have it round your neck you won’t drop it!

For storage and transport purposes most hand lenses come equipped with either a storage pouch or a plastic case. These enable you to keep your optic safe and reduce the risk of scratches or knocks occurring, especially when it is being carried in a pocket or bag. Spare leather pouches are available for the Triplet Loupe 10x 21mm but these may fit other lenses as well – we are happy to check before you buy.

Our full range of lenses and magnifiers can be found at nhbs.com.

Author interview: Simon Barnes

When writer Simon Barnes heard a Cetti’s Warbler sing out at a house viewing, he knew immediately that he had found his new home. Their new garden backed onto an area of marshy land which he and his wife purchased and began to manage it as a conservation area, working with the Wildlife Trust to ensure it became as appealing as possible to all species.

On the Marsh is his account of a year spent surrounded by wildlife. Part memoir, part nature guide, this is a vivid and beautifully written account of the wonders that can sometimes be found on our doorsteps, and how nature can transform us all.

We asked Simon a few questions about the inspiration behind writing his new book and his hopes and ambitions for the wildlife of Britain.

1. Can you tell us a little about your background and how you got interested in the natural world?

I received David Attenborough’s Zoo Quest for a Dragon as a junior school prize, the Natural History Museum every Saturday and the trees of Streatham Common to climb. After education and four years on local papers I ran away to Asia, when I worked as a gonzo journalist and re-found my taste for wildness.

I returned home and started writing about sport and wildlife, with columns in The Times on both subjects; I was chief sports writer for 12 years. I have written a number of books on wildlife, including the Bad Birdwatcher trilogy.

2. What was your inspiration to write a more auto-biographical work than your previous books?

I suppose it was the marsh itself. I wanted to write, not just about the few acres of Norfolk marshland we are lucky enough to own, but also about living with the place: sharing it: being a part of it.

I started writing with that idea in mind: and at once, my younger son Eddie made an entrance. I hadn’t really planned that, but he and I spend a lot of time out there, so it had to happen, I suppose. He’s just turned 18 and has Down’s syndrome. I started off wanting to write about vulnerable places: I ended up writing about vulnerable people as well.

3. Do you believe intervention in the form of land management is important to keep places like the marsh just as they are?

In land-management, doing nothing is a powerful form of action. Mostly I have left the marsh do what it wanted, but I have made sure the dikes are kept cleared and some trees have been cut down. I now manage an adjoining few acres rented from the parish: I am trying to keep this place open with the help of a local grazier. Nice contrast.

What’s natural? What’s unnatural? What’s imposed? Sterile questions: what matters is life.

4. The Barn Owl is often described in your book; would you say that it was the totem species on the marsh, or would you give that accolade to something else?

I am slightly surprised by this question, because so far as I am concerned, the marsh harriers steal the show. Marsh harriers: extinct as breeding birds in this country in the 19th century, making a comeback after WW1, then reduced in 1971 to a single pair – and now they skydance and hunt and food-pass over our bit of marsh: the powered flight just above stalling speed, the long glide with the wings held in that dihedral, and above all, the sense of ownership… because the marsh harriers own the marsh. I have the immense privilege of looking on.

5. While observing the marsh, was there one surprising fact or discovery that you didn’t previously know that you’d like to tell us about?

I was given a moth-trap for my birthday. I am pretty ignorant about moths, but on the first day I used it, the first moth I found was the moth on the cover of my moth ID book: an Elephant hawk moth, big enough to count as an honorary bird. So I read it up: and apparently it’s common. Well, maybe so: not commonly seen. It was a classic through-the-wardrobe moment.

6. What are your hopes for the future of such special and bio-diverse places?

My hope for the future is that they have one. I have long given up optimism, because I’m not daft, but pessimism is no way to live. Will we win the battle? Or will we lose? Such questions no longer matter. What matters is fighting on the right side.

7. Do you have any new projects in the pipeline that you’d like to tell us about?

I’m working on a big fat book called A History of the World in 100 Animals. It’s about the interface between human and non-human species: starting with Lion (we humans were originally a prey species), moving on to domestic cat (did we take them into our home because they purr?) and then to Gorilla (did you know there were just 46 years between King Kong terrorising New York and David Attenborough romping with Gorillas in Rwanda? That’s revisionism for you…). After that, Galapagos Mockingbird, American Bison, Oriental Rat Flea… you get the idea.

On the Marsh: A Year Surrounded by Wildness and Wet
Hardback | June 2019| £13.99 ~~£16.99~~

How the rewilding of eight acres of Norfolk marshland inspired a family and brought nature even closer to home.

All prices correct at the time of publication.

Dino-Lite Offer – free carry case with selected models

Until 31st July, receive a free sturdy carry case worth £29.99 with the AM7915MZT Dino-Lite Edge or Dino-Lite WF4915ZT Wireless, both with extended depth of field.

AM7915MZT Dino-Lite Edge USB Digital Microscope £1056

with USB connection, extended depth of field, auto magnification read and flexible LED control

Dino-Lite WF4915ZT Wireless Digital Microscope £1065

WiFi or USB connection, extended depth of field, auto magnification read and flexible LED control

See all benefits of extended depth of field here

Offer also applies to the extended working distance versions of these models: WF4915ZTL or AM7915MZTL.

See all Dino-Lite products

The NHBS Guide to Badger Gates

The European Badger (Meles meles) is one of the most iconic species found on the British Isles. These shy and elusive animals spend much of their time during the day hidden away within their extensive underground setts, emerging around dusk to forage on smaller mammals, earthworms, roots, bulbs and fruit.

Within their territories, badgers will follow established routes between foraging areas. When these pathways become obstructed by fencing, such as exclusion fencing for stock or deer, badgers will often dig under the obstruction to regain access to a familiar site and in doing so they may cause damage to the fence and allow in potentially unwanted species. In these circumstances, many developers will install a badger gate to allow badgers to freely access the site. These rectangular gates are constructed of either wood or metal and often feature locking mechanisms to ensure badgers can only pass through in a certain direction.

Although badgers are protected under the Protection of Badgers Act 1992, there are situations where developers need to temporarily or permanently exclude badgers from areas. This may be when they, or their setts, could be at risk of harm or disturbance. In these circumstances, and under acquisition of a license, one-way badger gates can be installed in sett entrances or in fencing surrounding a development to gradually exclude badgers from the area. These badgers will then either relocate to a new territory or to a nearby artificially-created sett.

At NHBS we manufacture a range of badger gates and this article will outline how they can be installed and used in different badger mitigation projects.

Softwood Badger Gate

This softwood badger gate has been designed in accordance with the specifications outlined by Natural England (available here) and is an excellent economic choice for many projects. It is constructed from untreated FSC-certified timber, which ensures badgers will not be harmed if they ingest any chewed wood. This gate has been designed so that it will not jam following periods of rain when the wood may swell.

The softwood gate is suitable for use where badgers require access through a fence. This gate can also be used in exclusion projects; however unlike our aluminium gates they can be damaged by chewing and often have a shorter lifespan.

Price: £29.99 inc VAT
Frame Dimensions: 450mm (H) x 285mm (W)
Entrance Dimensions: 250mm (H) x 200mm (W)
Material: Untreated FSC timber
Weight: 2.1kg

Access Badger Gate

The access badger gate is constructed from marine grade aluminium which ensures it is strong enough for repeated use while keeping it lighter than most steel gates. It features a heavy-duty grill panel which allows badgers to view what is on the other side of the gate, which can encourage some badgers to pass through. It has pointed legs which should be driven into the ground using a wooden mallet, however a hammer can also be used with a block of wood (striking the frame directly may cause warping and damage). The gate has two locking tabs that can be adjusted using a size 10 spanner to allow either two-way or one-way access.

This gate is designed for use in long-term projects where badgers need access through stock or deer fencing. For exclusion projects we would recommend our exclusion gates.

Price: £87.95 inc VAT
Frame Dimensions: 595mm (H) x 295mm (W)
Entrance Dimensions: 320mm (H) x 220mm (W)
Material: Marine Grade Aluminium
Weight: 3kg

Exclusion Badger Gate

The exclusion badger gate is also constructed from marine grade aluminium and comes fitted with a solid gate flap. This solid door has been designed based on evidence that some badgers can learn to use their claws to lift grill gates open. Another feature of this gate is that it does not have legs. This allows the gate to be positioned either vertically or horizontally in awkward sett entrances where a typical vertical gate would not be suitable. By installing this gate ecologists and developers can be confident that badgers will not be able to re-enter an exclusion zone.

This gate is also available with pointed legs, for installation within exclusion fencing.

Price: £75.95 inc VAT
Frame Dimensions: 400mm (H) x 295mm (W)
Entrance Dimensions: 320mm (H) x 220mm (W)
Material: Marine Grade Aluminium
Weight: 2.6kg

Accessories

Badger Fencing

All of our gates can be incorporated into this high tensile wire fencing. It can be erected as a freestanding barrier or installed across a sett to prevent badgers from digging to form new entrances or to get around any installed gates.

Price: £399 (50m)

Stainless Steel Cable Ties

These strong, corrosion resistant cable ties can be used to quickly and easily secure a badger gate frame to the surrounding fencing.

Price: £8.50 (pack of 20)

Caudon® High Tensile Steel Pegs

These steel pegs are excellent for securing fencing to the ground, particularly in areas where badgers are prone to tunneling. These pegs can also be driven through the access and exclusion badger gates to provide a firmer placement.

Price: £0.95 each

Author Interview – Stephen Rutt

In this moving and lyrical account, Stephen Rutt travels to the farthest corners of the UK to explore the part seabirds have played in our story and what they continue to mean to Britain today. From Storm Petrels on Mousa to gulls in Newcastle and gannets in Orkney, The Seafarers takes readers into breath-taking landscapes, sights, smells and sounds, bringing these vibrant birds and their habitats to life.

To get to know Stephen Rutt and his new book, we asked him a few questions on his inspiration, advice and some interesting facts he’s discovered on his journey while writing The Seafarers.

Can you tell us a little about your background and how you got interested in seabirds?

I’ve been birding since I was 14. I grew up with two dominant interests: birds and books. Circumstances funnelled me towards studying literature and after university I was unhappily living in London with a job I didn’t enjoy. When I was 22 I saw an opportunity to get out, by volunteering at the bird observatory on North Ronaldsay, the northernmost of the Orkney islands. I was expecting to fall in love with migratory birds, but found myself in one of the slowest, least-exciting springs for them. That focused my attention instead on the unfamiliar terns, the tysties (black guillemots) and fulmars. I fell in love with seabirds there. The Seafarers is my love letter to them.

2. If anyone wanted to observe or study seabirds themselves, what would be your advice to getting started.

Britain is brilliant for seabirds. Even if you can’t get to the coastline, there are kittiwakes – a proper sea-going gull – nesting in Newcastle city centre, and terns migrating overland. If you can get to the coast then there will be a colony of something not too far away, whether it is terns or fulmars or gannets or auks. Find a place and a species that suits you and spend some time watching – it’s a heady, hypnotic, fun thing to do. Some books will help. The Collins Bird Guide is a great field guide to help you work out what you’re looking at, particularly with the tricky common/Arctic tern, and a book like Shearwaters by R. M. Lockley will guide you through the thought processes and the joy of observation. If anyone reads The Seafarers and is inspired to go birding or seek out a seabird, I will consider it a success.

3. Seabirds face many threats to their survival; in your opinion, what is the number one threat they face?

Climate change. Plastic pollution is an obvious and alarming threat, but I fear it is easy to be distracted by a problem that’s much more visible, emotionally involving, and straightforward for individuals to have an effect on. Global warming threatens everything: not just the birds but the eco-systems they live in. It is not an original thing to say, but it is the number one threat with which we live. Problems are amplified by apathy. I wrote the book to bring the sight, the sound, and the smell of the species and landscape to the reader. I want people to fall in love with seabirds like I did.

4. Each chapter tends to focus on a different seabird; are you able to say which bird had the most profound effect on you?

Fulmars. I had been travelling the best part of 24 hours by public transport (two trains, four buses), when I finally got the ferry across to St Margaret’s Hope on the Orkney archipelago. It was blowing a gale and I was worried about the flight to North Ronaldsay being cancelled, stranding me in an unfamiliar place. I stood on the deck anyway, clinging to the handrail, fulmars carving up the breeze, turning it into their plaything. Their ability at flying elegantly in the strongest winds is exceptional. The wind continued for my first few days on North Ronaldsay. Fulmars were everywhere. At times they were close enough that it felt like I could reach out and touch them (though obviously I didn’t!). That was glorious. They were my welcome committee and they made the transition feel like absolutely the right thing to do.

5. While writing your book and observing seabirds; was there one surprising fact or discovery that you didn’t know previously that you’d like to tell us about?

I learned so much while researching the book, both how astonishing seabirds are and the distressing effects we are having on them. But let’s be optimistic! One of my favourite discoveries was in relation to the Arctic tern that were GPS tagged on Northumberland’s Farne Islands. It took the birds just a month to migrate to the sea off the coast of South Africa’s Cape of Good Hope. It took them just a month to return from there in spring, as well. The speed and the distance they are capable of is just incredible.

6. What are your hopes for the future of seabirds?

That they have one – which is depressing but true. Beyond that, I hope that we can take their conservation seriously, and that they can thrive as we continue into the Anthropocene, and a future of plastic pollution and global warming.

7. Do you have any new projects in the pipeline that you’d like to tell us about?

I do! I have just finished my second book. It’s about geese, winter, and the twin pull of Scotland and East Anglia and should be published this autumn by Elliott & Thompson. In the meantime, I’m looking forward to going birding again.

The Searfarers: A Journey Among Birds
Hardback | May 2019| £14.99
Takes readers into breath-taking landscapes, sights, smells and sounds, bringing these vibrant birds and their habitats to life.

You can discover more about the lives of seabirds, shorebirds and wildfowl by browsing our complete selection.

Royal Botanic Gardens, Kew: Publisher of the Month for June

NHBS are pleased to announce Royal Botanic Gardens, Kew as our Publisher of the Month for June 2019.

Kew have been publishing important scientific texts for nearly 260 years, the first notable publications being John Hill’s catalogue of trees and shrubs at Kew. With the arrival of William Jackson Hooker as Kew’s first director, and his successor and son Joseph Dalton Hooker in the 1800s, the publishing output of Kew soared as it became a scientific institution.

Their book publishing is inspired by Kew’s scientific work and collections and is aimed at engaging new audiences as well as plant lovers and professionals.

Just Published

Kew have just published: Field Guide to the Orchids of Europe and the Mediterranean. A comprehensive and beautiful photographic guide to the orchids of the region. Written by leading experts, who between them have decades of orchid field and research experience.

Paperback | May 2018| £24.99 ~~£29.99~~

Bestsellers

We have many of Kew’s bestselling books on promotion during June.

Wild Plants of Southern Spain: A Guide to the Native Plants of Andalucia
Hardback | May 2017| £23.99 ~~£29.99~~
An essential guide for anyone wanting to understand more about the flowers of this region.

Plants of the World: An Illustrated Encyclopedia of Vascular Plants
Hardback| Oct 2017| £57.79 ~~£71.99~~
The first comprehensive book to cover every vascular plant family in the world.

Field Guide to the Wild Flowers of the Western Mediterranean
Hardback| March 2016| £31.99 ~~£39.99~~
Covering over 2,500 plants, this easy to use guide focuses on the most common and conspicuous species that occur in the area.

The Kew Plant Glossary: An Illustrated Dictionary of Plant Identification Terms
Hardback| June 2016| £14.99 ~~£17.99~~
This plant glossary includes all descriptive terms used in floras, plant field guides and monographs.

Wild Flowers of the High Weald
Paperback| April 2018| £11.99 ~~£14.99~~
An Area of Outstanding Natural Beauty running across West Sussex, East Sussex and Kent. Within it are many varied habitats, from lowland heath to meadows and woodlands.

Ophrys: The Bee Orchids of Europe
Paperback| July 2007| £29.99 ~~£39.99~~
An insight of what a radically different energy future may look like and how we can prepare for it.

Forthcoming from Kew

Royal Botanic Gardens, Kew have more publications due in 2019, notably: The Extraordinary Story of the Apple, Field Guide to the Plants of the Falkland Islands and Field Guide to the Wild Flowers of the Eastern Mediterranean.

Browse all our books from Royal Botanic Gardens, Kew.

Kew’s mission is to unlock the potential of plants and fungi, through the power of scientific discovery and research.

All price offers are valid until 30th June 2019.

Introduction to sound recording

In recent years, advances in portable recording equipment have led to an increase in the exploration of listening as a method of engaging with as well as studying the natural world. This blog looks at a number of different equipment options across a range of budgets and objectives while briefly outlining some of the main technical considerations.

Equipment and Technical considerations

For those interested in having a go at sound recording, a handheld recorder is a great starting point and Tascam have some great entry-level options such as the DR-05X and DR-40X both of which allow you to record uncompressed audio. The advantage of this method is that the recorders are highly portable and require very little set up – invaluable if you’re out and need something that can be used at a moment’s notice.

The built-in microphones will not compete with a professional external microphone and if recording becomes more than a passing interest dedicated microphones, such as a parabolic, can be a great way to optimise your setup for specific recordings. The right recorder should have a logical menu system and inputs that allow for a suitable upgrade path via the connection of external microphones.

A common type of field microphone makes use of a parabolic dish, effectively acting as a kind of audio zoom lens making them useful for focusing in on a particular sound source. Some of these systems require a different type of power known as plug-in power so you’ll need a recorder able to supply this via a 3.5mm mic/line input as found on the Tascam DR-05X.

Telinga PRO-X Parabolic Microphone System

The Hi-sound and Telinga PRO-X systems are good examples of plug-in powered parabolic systems. If your recorder does not have plug-in power, you can use an XLR to PiP adaptor. This connects to the XLR outputs on your recorder and converts the phantom power produced by the recorder to plug-in power which can run the microphone.

Before heading out make sure you have adequate wind protection for your microphones, as even a slight breeze can ruin a recording if it’s not what you’re after! – Parabolic windshields – Tascam DR-05 windshield .

We also feature static recording devices such as the SM4 Acoustic from Wildlife Acoustics and the Bar-LT from Frontier Labs. These waterproof units feature built-in omnidirectional microphones and can be secured to any suitable surface. The long deployment times and scheduling functions make these ideal for long-term bioacoustic studies.

Over the past few years, a number of smaller, more lightweight passive recorders have been developed. These include the Song Meter Mini Acoustic, Song Meter Micro, and the Titley Chorus. Such models are very similar in purpose to the larger static recorders however sacrifice some battery life for their reduced size. Their size and affordability make them very suited for large-scale mass deployments.

Titley Chorus & Song Meter Mini Acoustic

In the field

To test a small cross-section of equipment, I headed to a small forest within the Dartmoor National Park to capture the distinctive call of the Common Cuckoo, armed with a Tascam DR-40, XLR to PiP adaptor, Hi-Sound Stereo Parabolic system, and a Wildlife Acoustics SM4 Acoustic recorder.

I initially walked a narrow path that cut through a steep section of woodland, at this point the cuckoos could be heard faintly calling from lower down in the valley. Locating a suitable tree easily accessible from the path, I decided to deploy the SM4. The SM4 has been designed to be exceptionally quick to set up straight out of the box and for this field test, I set it to ‘always record’ and secured it in place with a Python Mini Cable Lock.

Static recorder in place, I then used the Tascam DR-40 whilst walking through the woodlands to capture the changing soundscapes as I moved away from the sound of the river and closer to the open moor.

The DR-40 has a clear front-facing screen that is easy to read in all light levels, pressing the record button once arms the unit allows you to see and hear the recording levels. A good pair of headphones is recommended for use with this unit as they are susceptible to a certain amount of handling noise.

I then connected the parabolic to the Hi-Sound parabolic to the Tascam using the XLR to PiP adapter.

Dropping off the path I headed towards the middle of the wood where the Cuckoos could be heard calling in the distance. The high directionality of the parabolic microphone was excellent allowing me to pick out individuals among the woodland birds present.

Late in the evening whilst preparing to pack up I was rewarded with a fantastic display as several cuckoos alighted on the trees around me, a recording of which is included below.

Summary

I highly recommend getting out and exploring natural soundscapes in your local area, especially at this time of year. As with any piece of equipment, it takes a few trips to really get a feel of what they’re capable of, but any one of these items could become a reliable piece of gear for your sonic explorations.

To view our full range of sound recording equipment please visit www.nhbs.com. If you have any questions on our sound recording range or would like some advice on the best set-up for your project please contact us via email at customer.services@nhbs.com or phone on 01803 865913.

Further Reading:

Listening In The Field: Recording and the Science of Birdsong
Hardback | May 2018
£29.99

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.

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
£13.99

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

Author interview: Peter Marren

Written with Peter Marren’s usual wit and insight, Emperors, Admirals & Chimney Sweepers takes you on a journey back to a time before the arts and science were divided. When entomologists were also poets and painters, and when a gift for vivid language went hand-in-hand with a deep pre-Darwinian fascination for the emerging natural world.

Peter took the time to answer some of our questions about his new book and the origin of butterfly and moth names.

Tell us a little about your background and how you got interested in the etymology of species names?

I’m a natural history writer (in the sense that I’ve written a lot about natural history) with a background in nature conservation in Britain. I’ve loved butterflies and moths since boyhood, and I suppose I must have realised even then that many of them have unusual names. What the hell was an eggar? Or a lutestring? Probably like most people I didn’t think too much about it – weren’t names just labels? – until, out of curiosity, I went into the name of the Red Admiral, Vanessa atalanta, and discovered a real Vanessa and a real Atalanta. And then I realised that even Latin names weren’t randomly chosen but had a particular resonance with that particular species. Names hid a whole new world of allusion, poetry and wordplay. I discovered that those who named our Lepidoptera, in English and Latin, were equally educated in the arts and the sciences. They knew their myths, and they knew about colours and designs, and they were completely fascinated. I feel a strange empathy with that vanished world.

What was the original inspiration behind Emperors, Admirals & Chimney Sweepers?

It started as a kind of sequel to my book Rainbow Dust, about how and why butterflies and moths inspire people. Names were confined to a single chapter in that book, but there was so much more to say, not only about the names themselves but the social ambience that spawned them: the world of Georgian London with its clubs and field excursions, its gorgeous illustrated books and the sense that nature was all the more wonderful for being 1) divinely inspired and 2) almost completely unknown.

The lightbulb moment came when I thought of dealing with names not as an entomologist might do, by families and related groups, but by themes: species named after animals, birds, moods, occupations, jewels and so on, all laid out alphabetically. I loved the fact that certain fine moths were named after weddings, focussing on bridal underwear worn in eighteenth century Sweden!

Emperor, Admiral and Chimney Sweeper are, of course, names of a butterfly and two moths.

If you could name a new species of moth or butterfly, how would you go about it?

Well, it ain’t a blank slate. There are written rules for scientific names and unwritten ones for common names. I’d love to call it Marren’s Glory but it would not be approved. I’d have to stick with the established vocabulary. So if it resembled, say, a wainscot moth, it would continue to be called that, distinguished by whatever word best caught its character. Overlooked Wainscot? Lenitive Wainscot? Look-alike Wainscot?

What would be your advice for any budding entomologist out there?

There’s more to the natural world than pure science. Keep your eyes, and your mind, open. And enjoy yourself. And don’t say, “Oh that’s a Lenitive Wainscot, a Schedule 7 species graded as Least Concern in the latest IUCN Red List.” Just the name will do.

What is your most memorable butterfly or moth name, and why?

There are lots, but let’s go with the poor little Narrow-bordered Bee Hawk-moth, whose Latin name, tityus, commemorates the most hideous giant in all mythology. The giant’s poor mum exploded at his birth and when full grown his body covered nine acres. What do they have in common? Well, the old name for hawk-moths was Sphinx, and the Sphinx was a monster. Ergo (Linnaeus thought), hawk-moths should be given monstrous names. And the bee hawk accidentally got the worst of them because of its place on the list, wedged between two other appalling creatures.

I quite like Zygaena, the name of the burnet moths which they share with the hammerhead shark. For reasons too convoluted to go into here (but it’s in the book).

Any new books/projects in the pipeline?

I will have to find another project for it’s in the DNA. I suspect it will involve nature and childhood. Trouble is, others are on to it.

Other works by Peter Marren

Peter writes frequently in as ‘Twitcher’ in the British Wildlife column ‘Twitcher in the Swamp’ and has had a string of successful publications including Chasing the Ghost (now in paperback), Rainbow Dust and the first volume in the British Wildlife Collection series. Click here for more books by Peter Marren.

Author Interview – Heather Buttivant

Sometimes the most extraordinary nature stories and scientific revelations lie in plain sight. So familiar that unique stories of survival are overlooked. Rock Pool is an eye-opening, enchanting journey into the miniature worlds of rock pools with a new author who will change the way you view even the most ordinary creatures – from crabs to barnacles, blennies to anemones – forever.

Educator and award-winning blogger, Heather Buttivant kindly took some time out of her rock pooling schedule to answer our questions about her new book.

Your passion for the marine environment shines throughout Rock Pool, where did your passion stem from?

Like most children growing up by the sea, I liked to pick up seashells, but for me it became an obsession. Back then I couldn’t name everything, but the variety of shapes and textures and the vibrant colours fascinated me. The longer I looked into rock pools, the further I was reeled in. It’s a passion I have no intention of out-growing: no matter how much I know, there is always more to learn.

What was the original inspiration behind your book?

It has always seemed a shame to me that there is so little nature writing available about our incredible intertidal wildlife. When I created a website as part of my MA in professional writing with Falmouth University, I struggled to imagine why anyone would be interested in my ideas for a novel, but the thought of opening up the little-known world of the rock pools filled me with excitement. My Cornish Rock Pools site took off faster than I expected and when the site won the BBC Wildlife Magazine Blog of the Year Award, it came to the attention of the lovely people at September Publishing and this was the perfect opportunity to bring my love for nature writing and for seashore together as a book.

You’ve selected a fascinating range of marine creatures; how did you choose them from such a biodiverse environment?

My identification guides to the seashore contain thousands of species, so narrowing this down to just 24 animals felt like a near-impossible task. Most of the animals I’ve selected can be found all around the UK and Ireland and together they tell an incredible story of survival. I have aimed to convey the experience of animals living in different zones of the shore and in the range of different environments from mud-flats to seagrass beds. Some of the creatures, like barnacles and limpets, are familiar yet have remarkable abilities that are unimaginable to us land-dwellers. Others, like corals, sharks and cephalopods, are animals that most people assume can only be seen by divers but with luck and perseverance they may be seen by rock poolers too.

Rock Pool is full of exciting encounters you have had at the seashore, but which was your most surprising?

I find something new almost every time I visit the shore, but one day, whilst dangling my feet in a pool, with all my attention focused on a tiny sea slug in a petri dish on the rock beside me, I noticed movement in the water. When I glanced down I realised that a substantial lobster was inching towards my toes! I nearly dropped my camera. ‘Bob’, as I now know him, has become quite a legend in our family and his location is a secret that is closely guarded by all those who have met him.

Do you have any tips for a successful rock pooling session?

My top tip is to join a rock pooling event where you can learn and explore with the experts. This is a great way to see amazing animals and to find out how to keep yourself and the wildlife safe on the shore. The key to spotting creatures is to slow right down and take the time to look closely at the small things. Most rock pool animals are masters at hiding in plain sight. A single rock may be densely packed with keel worms, sea squirts, sponges and crustaceans, but at a quick glance you’d think there was nothing there. Always check the tide times first and leave everything as you found it – gently replacing stones the right way up.

Finally, do you plan to write any more books in the future?

Our rock pools are so incredibly diverse that I might never run out of material for more books. However, I’m also passionate about the importance of giving people, especially children, better opportunities to connect with the natural world. We protect and care about the things that we love, so it’s vital that we all feel that we are a part of the ecosystems on which we depend. Perhaps that will be my next writing project?

A limited number of signed copies are available at NHBS, order now to avoid disappointment!

If you’re feeling inspired to go out rock-pooling, we have created a selection of essential books and equipment to help you get started!