New and Bestselling Trail Cameras for 2019

As we enter the warmer spring months many of the UK’s mammals become more active as they establish territories, build nests and find mates. Despite all this activity, observing and surveying these animals is often a challenging task. Trail cameras offer an easy, effective and non-invasive solution in many of these situations, earning its place as an essential kit piece for any ecologist or wildlife enthusiast.

Listed below are a selection of new models and old favorites from each of our trail camera ranges.

Browning trail cameras

New for 2019, NHBS has introduced a range of Browning trail cameras. These cameras boast a fantastic quality of workmanship, designed and developed in the US they are sure to become a firm favourite. A key feature of this brand is the ‘Smart IR technology’ which automatically adjusts the IR flash, ensuring crisp quality night photos.

The video below was captured on a Browning Strike Force Pro X. It demonstrates the fantastic quality of these cameras.

Image by Browning Trail Cameras

Each camera has its own unique technical specifications meaning you can find a camera to suit your project.

Command Ops Pro 14MP
An excellent entry-level camera with an impressive picture and audio quality at an economic price.

Command Ops Pro 14MP

 

* 14MP images
* 1280 x 720p HD videos with audio
* Low glow LEDs
* LCD Text display
* 21m Flash range
* Also available as a 16MP camera

 

 

Strike Force Pro X
This compact mid-range camera has a fast trigger speed and an excellent picture/video quality ensuring you capture every moment in fantastic quality.

Strike Force Pro X

 

* 20MP images
* 1600 x 900p HD videos with audio
* Low glow LEDs
* Full-colour 1.5-inch LCD screen
* 36m Flash range
* Fast trigger speed of 0.22s

 

 

Defender 940
A high-end camera with built-in Bluetooth and wireless capability and no glow LEDs to enable remote photo retrieval and minimise disturbance in the field.

Defender 940

*20 MP images
* 1920 x 1080p HD videos with audio
* No glow LEDs
* LCD Text display
* 24m Flash range
* Wireless and Bluetooth functionality accessed through the free Browning Defender App.

 


Recon Force 4K
This high-end model can take some of the highest quality pictures and videos on the market.

Recon Force 4K

 

* 32MP images
* 4K UHD videos with audio
* Low glow LEDs
* Full-colour 2-inch LCD screen
* 24m Flash range
* Adjustable trigger speed and detection range

 

Ltl Acorn Cameras

These compact cameras utilise three different motion sensors to ensure footage is taken at the optimum moment. They also feature a cellular module which when used with a SIM card allows you to receive captured images to a mobile or email address.

Ltl Acorn 5310
A great mid-range camera with excellent picture and video quality

Ltl Acorn 5310

 

* 12MP images
* 1920 x 1080p HD videos with audio
* No glow LEDs
* 15m Flash range
* Trigger speed 0.6s
* Colour LCD screen

SpyPoint Cameras

Renowned for their lightning fast trigger speeds and recovery speeds, SpyPoint cameras ensure you never miss a wildlife moment.

SpyPoint Force 11D
A robust and compact mid-range camera with a wealth of adjustable settings so you can take the best footage possible.

SpyPoint Force 11D

 

* 11MP images
* 1280 x 720p HD videos with audio
* Low glow LEDs
* Full colour 2-inch LCD screen
* 30m Flash range
* Fast trigger speed of 0.07s

 

 

SpyPoint Solar
Builds on the Force 11D by adding a solar panel which allows you to gather footage indefinitely when placed in sufficient sunlight.

SpyPoint Solar

 

* 12MP images
* 1280 x 720p HD videos with audio
* Low glow LEDs
* Full-colour 2-inch LCD screen
* 30m Flash range
* Fast trigger speed of 0.07s
* Compact solar panel attached to the top of the unit

 


SpyPoint Link-Dark
This high-end camera builds on the Force series by adding network functionality, allowing photos to be transmitted to a mobile phone.

SpyPoint Link-Dark

 

* 12MP images
* 1280 x 720p HD videos with audio
* Low glow LEDs
* Full-colour 2-inch LCD screen
* 30m Flash range
* Fast trigger speed of 0.07s
* GPS geotag
* Network unit with preactivated SIM

Bushnell Cameras

With an extensive history and a range of professional and entry-level models available, Bushnell trail cameras offer a reliable choice for quality and durability.

Trophy Cam Essential E3
A fantastic entry-camera with an impressive trigger speed.

Trophy Cam Aggressor HD Low Glow 20MP Tan
Trophy Cam Essential E3

 

* 16MP images
* 1280 x 720p HD videos with audio
* Low glow LEDs
* LCD Text display
* 30m Flash range
* Fast trigger speed of 0.3s

 

 

Trophy Cam Aggressor HD No-Glow
A high-end camera with a fast trigger speed and low detectability.

Trophy Cam Aggressor HD No-Glow

 

* 20/24MP images
* 1920 x 1080p HD videos with audio
* No glow LEDs
* Full colour LCD screen
* 25m Flash range
* Fast trigger speed of 0.2s

Reconyx Trail Cameras

These high-end trail cameras are a benchmark of high-quality and reliability.

Reconyx UltraFire XR6 Trail Camera
A robust camera with excellent video quality and a number of impressive features.

Reconyx UltraFire XR6 Trail Camera

 

* 8MP images
* 1920 x 1080p HD videos with stereo audio
* No glow LEDs
* Full colour LCD screen
* 25m Flash range
* Compatible with Buckview Advanced Software, to organise and map stored images.

 

Accessories

A number of accessories can be bought to help mount and secure your trail camera your camera in the perfect position.

Python Mini Cable Lock

Python Mini Cable Lock
Compatible with all of our retailed trail cameras. This versatile lock has been designed to be extremely resilient to damage and picking, protecting your camera from any potential theft.

Security Boxes
Many of our trail cameras can be contained within a matching security box which provides maximum protection when in the field. All of our security boxes can be locked using a standard padlock or python cable. Make sure when purchasing a security box that it will fit the intended trail camera.

See our full range of Security Boxes on our website.

Batteries
The batteries you use in your trail camera can influence its performance in the field. Lithium-ion batteries are one of the most popular choices because they produce a high voltage per cell (1.6v) giving a brighter LED flash and a greater flash range. Rechargeable alkaline batteries offer a more economical and environmentally friendly alternative, however, when in use their voltage decreases over time and they produce proportionately darker LED flashes and consequently, photographs/videos are less illuminated. Standard alkaline batteries are also a suitable economic alternative.

SanDisk Class Cards
Ensuring you use a high read-write speed SanDisk Class card is highly advised for all of our trail cameras. Be sure to check the maximum SD or SDXC card capacity for your intended camera as these can vary between models and brands.

Solar panels
Where sufficient sun is available, the addition of a solar panel to your trail camera can extend its recording life indefinitely. Bushnell, SpyPoint and Ltl Acorn all offer compatible solar panels for their trail cameras.

All of our trail cameras can be purchased as starter bundles which include an SD card and all the batteries you need to power the camera. The complete trail camera range can be found at www.nhbs.com

Can’t decide which camera you need? Why not take a look at our guide on choosing the camera that’s right for you.

Continue reading “New and Bestselling Trail Cameras for 2019”

NHBS Guide to Bat Survey Equipment

Common Pipistrelle by Meneer Zjeroen on Flickr

With Spring around the corner and the bat survey season fast approaching, it is a great time to make sure you have everything ready for the busy months ahead. Over the winter we have been busy reviewing our current products, cataloging new products and even designing our own products. Here, we have picked out some exciting new products as well as some old favourites to take a look at.

The NHBS Harp Trap – Coming Soon!

Over the last few months, the NHBS manufacturing team have been working hard on developing the NHBS Harp Trap. We are currently in the process of testing and trialing our harp trap ready for its release in the coming months. Designed and built on-site at our workshop in Totnes, our three-bank harp trap will feature some innovative designs such as a winding line carrier and anti-tangling system that makes assembly and disassembly, easy and efficient. Made mostly from aluminium, the trap is surprisingly lightweight at just 15kg, whilst remaining sturdy and durable during use. The harp trap is 190cm long and has a catch area of about 4m². The catch bag is approximately 60cm deep and its entrance is about 39cm wide. When collapsed, the catch bag wraps around the disassembled frame and is held tightly with Velcro straps so that it can be neatly stored and carried in its bag. Initial feedback on its design and function has been very positive and we are excited to develop our design based upon suggestions from professional bat workers. Our standard trap will be a three bank, but if you would like a bespoke two or four bank trap, please contact us so that we can discuss your requirements.

BTHK Tree-Roost Net

Based on the design by Henry Andrews from the Bat Tree Habitat Key (BTHK) project, the BTHK Tree-Roost net is uniquely designed for trapping bats as they emerge from tree roost sites. The net is set up against a roost site prior to dusk so that it will catch any bats that emerge, keeping them safely in the bag ready for identification, measuring and ringing. The diamond shape of the net head can pivot and collapse inwards to ensure that the net fits flush against any tree, making it safer for bats and easier for surveyors. The net bag is made from fine woven nylon mesh that is soft and will not damage the delicate wings or feet of bats. The net bag can be easily removed for cleaning and features a clear plastic rim that fits around the collar and prevents bats from climbing up and out of the net when it is in place. The length of the handle is 4 meters (breaks down into 3 sections for ease of transport) and the depth of the bag is 1 metre. You may also be interested in the book Bat Roosts in Trees which is a guide to finding tree roosts.

Anabat Scout – Coming Soon!

The Anabat Scout is the latest bat detector by Titley Scientific. Due for release this March, the Scout is designed with UK and European bat biologists in mind and is tailored for active bat surveying. It can record both full spectrum and zero crossing files and stores them on a SD card with every file geo-tagged. The Scout has heterodyne, auto-heterodyne and frequency division audio that can be played through earphones or its own built-in speaker. The in/out bat counter is ideal for emergence surveys and will automatically timestamp and geo-tag every count. The small OLED screen displays crucial information without being too bright or distracting and the Anabat Scout will be compatible with Anabat’s free Anabat Insight software for viewing and analysing your data. Easy to use and versatile, this new detector is set to become popular with bat ecologists who are looking for an active survey detector.

Elekon Batlogger M

The Elekon Batlogger M is great for active surveying and full spectrum recording. The weatherproof FG Knowles microphone has a range of 10–150kHz and can record in 16-bit full spectrum. The Batlogger M also logs the GPS coordinates (via an integrated GPS receiver), and environmental temperature at the time of recording. Different recording settings (scheduled, permanent, or triggered), and different trigger thresholds (for call identification) can be set up and the device comes with its own powerful but user-friendly call analysis software package

Echo Meter Touch 2 Pro

The Echo Meter Touch 2 lets you record, listen to, and identify bat calls in real-time on your iOS or Android device. All you need is your Android or Apple device (see the nhbs.com website for compatible models), your Echo Meter Touch 2 Pro, and the Echo Meter Touch App which is a free download from the iTunes Store or Google Play Store. When plugged in, the Echo Meter Touch 2 enables you to listen to bats in real time, view live sonograms in full colour, record onto your device and identify calls to species level in seconds. If your device has GPS functionality, the Echo Meter Touch will also log the recording location and path of the recording session. There are two versions available in both an iOS version and Android version. Both versions allow you to listen to calls in real time expansion and heterodyne and you can playback in real time expansion, heterodyne or time expansion modes. The trigger sensitivity and sample rate are adjustable and three gain settings allowing users to optimise their detector to their target bat species and ambient conditions.

SM4BAT FS

The SM4BAT FS is a full spectrum detector for passive surveying use. Robust and weatherproof, it will record 16-bit full spectrum calls and can store up to 512GB of data. A versatile scheduling function allows you to set when you want to record and the battery can last up to 450 hours. The SM4BAT FS is easy to fit to a tree or post and is compatible with a variety of accessories such as GPS unit and microphone extension cables. The SMM-U2 ultrasonic microphone is available with the SM4BAT FS and is a highly sensitive microphone that produces high quality, low noise bat recordings over long distances. Easy to set up and producing detailed call recordings for analysis, the SM4BAT FS is ideal for unattended use in the field.

Anabat Swift

The Anabat Swift from Titley Scientific is based on the excellent design of the Anabat Express, but has the advantage of recording in full-spectrum, as well as zero crossing. Users can choose between sample rates of 320 or 500kHz and data is saved onto an SD card. Two SD card slots are available, allowing you to save more bat calls without changing cards. The Swift also has a built-in GPS receiver that automatically sets the clock, calculates sunset and sunrise times and records the location of the device. It will also record automatically from sunrise to sunset every night (based on GPS coordinates) as one of the automatic recording settings.

BatLure

The BatLure can be used as a lure to improve catch rates of bats for survey or research, to attract bats to new artificial roosts such as bat boxes or constructed hibernacula, with bat detectors at training events or prior to bat walks and for calibration of bat detectors. The Batlure can playback sounds with frequencies of up to 100kHz and is capable of playing both real time and time expanded recordings of bat vocalisations. It is very compact and robust and has a tripod attachment mount, making it easy to set-up in your desired location. It plays sounds from an SD card which is supplied complete with several pre-loaded recordings. Users can also add their own recordings onto the card.

Ecotone Ultra Thin Series M mist net for bats

The Ecotone Ultra Thin Series M is ideal for catching bats and is available in 2 mesh sizes. Both are made from nylon (0.8mm monofilament) and have 4 shelves. Available in lengths from 3m to 21m, you can pick the mesh size and length that best suits your survey and situation.

 

Explorer Premium Digital Endoscope Camera

The Explorer Premium Digital Endoscope is lightweight and easy to operate. It can record still images or video on to a microSD / microSDHC card (not included). The screen can be detached whilst the camera is in operation and viewed up to 10m away. The camera head has a diameter of 9mm and the cable is 91cm long, giving easy access to nest boxes, burrows, nests, crevices etc. Lighting levels can be adjusted to minimise disturbance to animals.

Accessories

Below are some accessories that may come in use when surveying bats:

Petzl Actik Headtorch
£39.95

Stainless Steel Hand-Held Counter
£7.50

Animal Handling Gloves
£5.69 5.99

dialMax Vernier Dial Caliper
£29.99

ETI Hygro-Thermo Pocket Sized Hygrometer
£21.95 26.99

Small Mammal Holding Bag
£3.60

Telescopic Inspection Mirror
£14.99 16.99

High Flier Mist Net Support System (for Bats)
 from £695.00

Further Reading

Below are some books that may come in use when surveying bats:

Bat Roosts in Trees£39.99
British Bat Calls £18.99
Bat Surveys for Professional Ecologists£29.99
The Bat Worker’s Manual£17.99

A note on licensing

Please note that in the UK, all bats and their resting or breeding places are protected by law. Any bat survey work must be undertaken by a licensed bat ecologist and when purchasing certain products, we ask you to confirm your lisence or give an appropriate reference. For more information, please visit https://www.gov.uk/government/collections/bat-licences.

NHBS Guide to newt survey equipment

 

Great Crested Newt. Image  by Lottie

Great Crested Newts are the UK’s most strictly protected amphibian, requiring licensed ecological surveys if a development may affect them. As the first signs of spring emerge, ecologists are preparing for the start of this year’s newt survey season. Below, we have compiled a list of the most common newt survey methods and the equipment needed for each, so that you can ensure you have everything you need as the survey season approaches.

Netting

Netting for adult and larval newts can be a useful tool in both survey and relocation. Here at NHBS, we have designed an amphibian net specifically for the safe and efficient capture of newts. The net bag is attached by a wide velcro collar which prevents newts from becoming caught between the frame and the bag. The bag can also be removed from the frame to be disinfected between sites. The seams have been carefully placed so that they do not come into contact with the front edge of the net, and the material of the bag is a soft 2mm mesh. The net head is 300mm wide and comes with a sturdy, wooden 1.2m handle. We also sell a diamond-shaped amphibian net that comes in either standard depth or deep. Its shape is ideal for easy and safe capture for amphibians and is also available in a collapsible frame for easy transport between sites.

eDNA

The presence of Great Crested Newts can be determined by analysing pond water samples for newt DNA. This process is known as eDNA sampling and is a recent but very effective way of newt surveying that causes very little disturbance to the newts themselves. Provided that the sampling and analysis protocol complies with DEFRA guidance and that samples are collected between 15th April and 30th June, then eDNA test results are accepted by Natural England and Natural Resources Wales. This year, NHBS has once again teamed up with eDNA laboratory, Nature Metrics to deliver a complete Great Crested Newt eDNA analysis service. Combining our expertise in sourcing, packing and shipping equipment with the excellent laboratory proficiency of Nature Metrics, this partnership facilitates a fast and efficient service. If you would like to find out more about the eDNA services that Nature Metrics provide, please visit www.naturemetrics.co.uk

Dewsbury Trapping

The Dewsbury trap is an innovative design of newt refuge trap that is exclusive to NHBS. The clever design of this trap ensures that any trapped newts have access to both fresh air at the top of the trap and a thermally stable refuge at the bottom of the pond. They can be easily deployed from the edge of the pond meaning that not only is this trap safer for newts, but it is also safer and more convenient for surveyors too. In preliminary trials the Dewsbury trap was found to be more effective at catching newts than traditional bottle trapping methods and can be left unattended for up to 24 hours meaning night visits are not necessarily required.

Please note: we recommend that you contact your national licensing authority (Natural England, Natural Resources Wales, Scottish Natural Heritage, etc) before you purchase this trap. The Dewsbury Newt Trap is not included within either the Level 1 or Level 2 Natural England Class Survey Licence and a separate licence is required

Bottle Trapping

Bottle trapping is a popular method of surveying for both detecting and assessing populations. It can, however, become quite labour intensive, especially if you are looking to cut bottles into traps yourself. To save yourself some valuable time, we sell pre-cut bottle traps with the head inverted and ready to deploy. These can be bought in packs of 40 or 120 and are cut from 2l PET bottles with a 28mm neck diameter. Alternatively, we sell the whole bottles if you would rather cut the traps yourself.

Torching

Torching is a less invasive and effective method of counting/observing newts without the need for capturing them. Torches are recommended to be between 500,000 and one million candlepower and need to ideally last several hours at a time. The Cluson CB2 range is very popular among ecologists and provides 1 million candlepower with long lasting battery life and an easy-to-use pistol type grip. For a more lightweight and economical option, the LED Lenser is a powerful torch that offers up to 450 lumens and a sharply focused circular beam that can last up to 300 hours on a low power setting.

 

Drift Fencing

Fencing can either be used to temporarily exclude or contain newts in mitigation projects. It can also be used to aid the capture of newts for relocation and is typically a short barrier with the base buried underground. Our Tristar Newt Fencing comes in rolls of 100m, is made of UV stabilised polythene sheeting and tinted green. It is designed to resist weather damage and has a life expectancy of 5 years, making it ideal for temporary mitigation projects during development works. It is easy and simple to put up and can be fixed into place with our soft wood stakes.

Pitfall Traps

Often, pitfall traps are used alongside drift fencing in order to trap and translocate newts in relocation projects. They consist of a container that is buried underground often flush with the edge of drift fencing. Both square buckets and round buckets have been shown to be effective and we supply several options depending on your preferences.

Accessories

Below are some accessories that may come in use when surveying Great Crested Newts: 

 

Light & Dry Micro First Aid Kit
£15.95 16.99

Bamboo Canes
From £13.00 for 100

dialMax Vernier Dial Caliper
£29.99 45.00

Snowbee Granite PVC Thigh Waders
£40 (various sizes)

Snowbee Lightweight Neoprene Gloves
£12.95 (various sizes)

Replacement Amphibian Net Bag
£26.99

Broad Spectrum Disinfectant Tablets
£19.99

Breaksafe Thermometer
£7.50

A note on licensing

Please note that Great Crested Newts and its habitat are protected by law. Any Great Crested Newt survey work must be undertaken by a licensed ecologist. Different levels of license are required for different survey and mitigation methods. For more information, please visit https://www.gov.uk/government/collections/great-crested-newt-licences#great-crested-newt-survey-and-research-licences

NHBS Guide to small mammal survey equipment

Small mammals are common and widespread across many of our terrestrial ecosystems. They play a crucial role in ecosystem food-webs as key prey species for many carnivores and are also useful as indicator species for agricultural change and development. Consequently, surveys of small mammal populations can be a useful tool for ecologists, researchers, and conservationists alike.

Small mammals are most commonly monitored through the use of live traps. These allow a range of species to be monitored simultaneously and also allow biometric data such as weight and sex to be collected. In addition, estimates of population size and structure can be calculated using capture-mark-recapture (CMR) techniques. However, other more passive monitoring techniques such as dormouse nest tubes, hair tube, and footprint tunnels are also available. Below we will take a look at some of the most popular small mammal survey equipment.

Longworth Traps

Longworth traps have been widely used in the UK for many years. They are made from lightweight yet durable aluminium and have been consistently well documented in scientific literature and ecological reports.

The trap consists of two parts: a tunnel which contains the door tripping mechanism, and a nest box, which is attached to the back of the tunnel. The nest box provides a large space for food and bedding material to ensure that the trapped animal is comfortable until release. The sensitivity of the trigger mechanism can be adjusted depending on the target species, although Pygmy shrews have been known to be too light to trigger the mechanism. The door can be locked open for pre-baiting for ease of use.

The Longworth trap comes as two options: with a shrew hole or without a shrew hole (Please note that shrews are a protected species so ensure you are aware of the relevant laws in the country in which you are trapping).

Sherman Traps

Sherman Trap

Sherman traps are another popular live-trap which can be folded flat for ease of transport and storage. They work by a trigger platform which causes the entrance door to shut when an animal runs into the trap. Sherman traps are formed of one compartment and because of this, it can be difficult to add food/bedding into the trap without interfering with the trigger platform. The traps may also distort over time with repeated folding. Sherman traps come in a variety of sizes and lengths so that you can find a trap to best suit your target species and can be purchased as either an aluminium or galvanised version which is more resistant to rusting.

NHBS Water Vole Trap

If you are looking to trap and survey water voles, we offer a water vole trap which comprises an extra large (XLK) Sherman trap with its rear door removed and an attached nesting compartment. This trap is suitable for water vole survey, such as capture, mark, recapture studies, as well as water vole relocation projects.

 

Footprint Tunnel

Footprint tunnels are a less invasive method of surveying small mammals. Species presence/absence can be determined by examining the footprints made by mammals that have walked over an ink pad to reach the bait left in the tunnel. This method is especially useful for determining the presence of hedgehogs that are not otherwise easily ‘trapped’. The tunnel comes with a UK mammal footprint identification sheet; however it may be difficult to distinguish between some species of smaller mammals.

Squirrel Hair Traps

Squirrel hair traps are another non-invasive survey method that is designed for red squirrel survey. When squirrels pass through the baited trap, their hair is collected on sticky tabs within the tube. These hairs can then be analysed to determine whether red squirrels are present in the area.

 

Dormouse Tubes

Dormouse nest tubes are a cheap, easy and very popular method of determining the presence of dormice within a habitat. The tubes consist of a wooden tray and a nesting tube. Dormice make nests in the tubes and it is these that are used as indicators of their presence in the habitat. Dormice are legally protected in the UK and must not be handled unless you have a licence to do so. Nest tubes can be set up and checked without a licence until the first evidence of dormouse activity is found. After that, only a licensed handler can check them.

Accessories, guides and books

Below are some accessories, guides and books that are commonly used for mammal survey and monitoring:

 

Small Mammal Holding Bag
£2.50

Pesola Light-Line Spring Scales
From £35.00

Pesola PTS3000 Electronic Scale
£126.00

Heavy Duty Extra-Large Polythene Sample Bags
£0.70 per bag

Animal Handling Gloves
£5.69 5.99

Marking Flags
£2.50 for 10

Britain’s Mammals
£13.99 17.99

The Analysis of Owl Pellets
£4.99

Britain’s Mammals 2018
£17.99

A Guide to British Mammal Tracks and Signs
£4.50

A note on licensing

Please note that some small mammal species are protected by law (e.g. shrews and dormice in the UK) and you must obtain a license from Natural England, Scottish Natural Heritage or the Natural Resources Wales if you set traps with the intention of trapping any species of shrew. Please ensure you are aware of and meet the requirements of any relevant laws in the country in which you are trapping. Please visit https://www.gov.uk/government/publications/survey-or-research-licence-for-protected-species for more information.

Introducing new microplastics nets from NHBS

The destruction of aquatic ecosystems is a major issue facing conservationists globally – causes include microplastic pollution, acidification, global warming and over-fishing. The manufacturing team at NHBS have produced a series of new survey nets designed to help researchers gather data on microplastics and to sample plankton more efficiently. This blog describes the sea trials performed using our prototype nets to establish the optimal towing speeds and sea conditions as well as whether the nets worked effectively and were robust enough to withstand exposure to the marine environment.
Three new nets were tested – the Manta Trawl Net, which is designed to sample microplastics in calmer inshore waters and on rivers and lakes. The Avani Trawl Net, which is designed to sample microplastics in rougher, offshore environments and the Bongo Net (a pair of 300mm plankton nets joined in the middle and weighted with a depressor vane) which is designed to allow researchers to use two different mesh nets during a single trawl. Plymouth Sound was an ideal location, as we had both inshore and offshore designs to test and the breakwater provided us with easy access to both sheltered water and the open ocean.

The first design tested was the Bongo Net. The net performed very well. The sampling depth was easily adjusted by modulating the speed of the boat and the depressor vane kept the net level in the water.  In our tests the Bongo Net performed best at towing speeds of between two and four knots.

Bongo Net

Next, we tested our inshore Manta Trawl Net. The Manta Trawl Net is designed for microplastics sampling in calm inshore waters and on rivers and lakes. The Manta Trawl Net has a post box shaped aperture and twin ‘wings’ (manta wings) mounted onto the frame which serve to lift the net frame so that samples are efficiently collected at the top of the water column. This net was tested at a variety of towing speeds and performed best at speeds of between two and four knots.

Manta Trawl Net

The last net to be tested was The Avani Trawl Net. The Avani Trawl Net is designed for offshore microplastics sampling. The vertical orientation of the aperture of the net ensures that samples are collected from the top few centimetres of the water’s surface in slight to moderate swell conditions. To test this net, we ventured out beyond the breakwater where the swell was approximately 1-2m. The net stood upright and performed as expected at speeds of between four and eight knots when exposed to smaller waves of approximately one metre in height. When approaching larger waves, we found that the net had a slight tendency to cut into the side of the wave at speeds of between six and eight knots and that the net performed best at slightly lower speeds.

Avani Trawl Net
All of the nets functioned properly, and our haul included both microplastics and icthyoplankton (fish eggs and larvae). Both the frames and the nets also withstood the sea conditions well and we could find no faults with their design or build – all told a successful trial.
If you are interested in these nets look out for them in our 2019 catalogue, find them on nhbs.com, or contact us on customer.services@nhbs.com and we will send you more information as soon as it becomes available.

 

Watching Wildlife – Part 1 – Trail Cameras

This is part one of a two-part series that will look into different ways of filming wildlife in your back garden. In this part, we will take a look at trail cameras and what to look out for when buying one. 

One of our Wildlife Equipment Specialists, Antonia Peacock, shares her advice to help you choose the right trail camera for you.

Red Fox Bushnell Trail Camera
Red Fox captured on Bushnell Trail Camera

The variety of trail cameras on offer can be overwhelming, here are a few key things to look out for:

Type of LEDs
In order to capture videos or images in the dark, camera traps use infrared LEDs to illuminate the subject with little to no visible light used. There are two main types of LED flash systems that trail cameras use. These are No Glow and Low Glow. No Glow LEDs produce no visible light and so are completely undetectable by the subject. Low Glow LEDs produce a very faint red glow and so are not completely invisible, this can sometimes alert animals such as deer and foxes. However, they do have the benefit of being able to illuminate better over a longer distance.

Trigger Speed
Trigger speed is the time taken for the camera to take a photo once it has detected movement. If you are aiming to capture a fast-moving subject, then a quicker trigger speed (below 0.3 seconds) will enable you to achieve these photos before your subject has moved out of frame. 

Recovery Time
Recovery time is the time taken for the camera to process an image and become ready to take a second photo. If you want to capture multiple images of a subject as it comes into view of your camera, then a shorter recovery time will allow for this.

Badger photo Ltl Acorn Trail Camera
Badger photo captured on Ltl Acorn Trail Camera  ©Bryony James

Hybrid Mode
Hybrid mode allows the camera to take videos and photos simultaneously. A camera with this capability may be useful if you want to get as much footage as possible of anything that falls into frame of the camera. If you are more interested in capturing only photographs or only videos, this mode may not be an important feature.

Resolution and Interpolation
The quality of the images and videos that your trail camera can take will depend on its resolution. Most cameras have settings that can alter the resolution either, decreasing it through compression, or increasing it through interpolation. Compression is useful if you want to deploy your camera for a long time and memory card capacity may become an issue, whereas interpolation can produce a larger image by adding pixels. The best way to compare the quality of images between cameras is to look at sample photos and videos. The displayed megapixel value is often resolution as a result of interpolation. The true resolution of the image sensor can usually be found in the specifications as the true sensor resolution.

Screen
Some trail cameras come with screens that you are able to view your photos and videos on. This may be useful if you want to take a few test shots to check the positioning of the camera.

Our Suggestions
We have a range of trail cameras to fit all budgets and needs. Here are a selection of some of our most popular:

Ltl Acorn 5310
Ltl Acorn 5310

If you’re looking for a good entry-level camera, then take a look at the Ltl Acorn 5310, an easy-to-use camera with an impressive 5MP true sensor.                                                  LED type: No Glow                                                                        Trigger speed: 0.6s                                                                    Recovery time:  Not stated                                                Hybrid: Yes                                                                  Resolution: 12MP (5MP true sensor)                                                                                   Viewing Screen: yes (internal)

 

Bushnell E3
Bushnell E3

For the next step up, the Bushnell E3 is one of our most popular trail cameras and another ideal entry-level option producing high quality images and videos but at a relatively low price.                                                                      LED type: Low Glow                                                              Trigger speed: 0.3s                                                            Recovery time: 1s                                                                  Hybrid: No                                                              Resolution: 16MP (3MP true sensor)
Viewing Screen: No

 

Spypoint Force-11D
Spypoint Force-11D

If the subject of your trail camera photos or videos is particularly fast, it may be worth taking a look at the Spypoint Force-11D whose trigger speed of 0.07 seconds is the fastest on the market.
LED type: Low Glow
Trigger speed: 0.07s
Recovery time: 0.5s                                                          Hybrid: Yes                                                                                                                                      Resolution: 11MP (interpolated)                                                                                            Viewing Screen: yes (internal)

 

Bushnell NatureView Live View HD
Bushnell NatureView Live View HD

Or perhaps your desired subject is on the smaller side and you are looking to capture close up images, the Bushnell NatureView Live View HD comes with a close focus lens and a live-view screen.                                        LED type: No Glow
Trigger speed: 0.2s
Recovery time: 0.7s                                                          Hybrid: Yes                                                                Resolution: 14MP (3MP true sensor)
Viewing Screen: yes (external)

Accessories
There are a selection of accessories that you may want pair with your camera to get the best out of your camera-trapping experience.
If you are worried about leaving an expensive piece of kit outside and unattended, then you may want to invest in a Python Lock. This cable lock will fit most trail cameras and and will give you piece of mind that your camera is secured in place. Here you can watch how to set up this lock with your own trail camera. You also may be interested in a security case that is compatible with your trail camera. These cases house your camera and secure with a padlock, which helps prevent vandalism and theft.

SD Cards
All cameras need a memory card to store your photos and videos on. Make sure to check what SD card capacity your camera needs, this is usually found in the specifications section. Browse our selection of SD cards to order alongside your camera so that you can get snapping as soon as possible.

Power Options
Most cameras are powered by batteries. We recommend you use Lithium Ion batteries with your trail camera to ensure maximum trigger speeds and longer battery life. Make sure to check how many batteries your camera needs. Some trail cameras are also compatible with solar panels which will allow you to extend the battery life of your camera. This is especially useful if you want to leave your camera outside for extended periods of time.

Bushnell Trophy Cam Aggressor Starter Bundle
Bushnell Trophy Cam Aggressor Starter Bundle

Starter Bundles
If you are looking to buy a trail camera and want to make sure you will be able to get out and start capturing as soon as it arrives, then you may want to take a look at our
starter bundle options. These bundles come with a memory card and batteries that are right for your camera to ensure you have everything you need to get started.”

To see more trail cameras available, take a look at our range here

Would you like some more advice on which trail camera or nest box camera is most suitable for you? Contact us on +44 (0)1803 865913 or email customer.services@nhbs.com . Alternatively, reply below and we will get back to you.

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 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. 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 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

 

Schwegler 1FQ Bat Roost2. Schwegler 1FQ Bat Roost

• Made from: Woodcrete
• Dimensions: 60 x 35 x 9cm; 15.8kg
• Box type: Crevice, maternity

 

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

 

Slimline Wooden Bat Box7. Slimline Wooden Bat Box

• Made from: FSC Wood
• Dimensions: 40 x 14 x 12cm; 1.9kg
• Box type: Crevice, summer

 

Beaumaris WoodStone Bat Box8. Beaumaris WoodStone Bat Box: Midi

• Made from: WoodStone
• Dimensions: 65 x 40 x 28cm; 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.

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 optical lens in a hand lens can be made from glass or plastic. Plastic lenses are generally more affordable and lighter but are of lower optical quality and are more difficult to clean. Plastic hand lenses, however, can be a good choice for schools and young children.

How many optical elements?

Canon 400mm

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).

Paul Canon EF 400mm f/4 DO IS USM By Paul Chin

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.

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 leOpticron Hand lens, 23mm, 10x magnificationnses 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.

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. 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 – this has two functions: a) if you have it round your neck you won’t drop it, and b) if you put it down somewhere the bright blue lanyard is easy to spot.

The table below provides a guide to the hand lenses sold by NHBS. More information and specifications of each can be found by following the links. Our full range of lenses and magnifiers can be found at nhbs.com.