NHBS In the Field – BAR-LT Bioacoustic Recorder

 

BAR-LT Bioacoustic Recorder

The BAR-LT is a bioacoustic recorder manufactured by Frontier Labs. The recorder is designed to be deployed in the field over extended periods and can be programmed to record for set times. This type of acoustic recorder is ideal for monitoring bird song, frog calls, or even wolves. This kind of monitoring is often referred to as passive acoustic monitoring (PAM) and is becoming increasingly popular in biodiversity studies across the globe. Not only are these growing libraries of soundscapes important for current research and survey, but they also provide invaluable references for future research into both global and local scale biodiversity change.

The BAR-LT is a professional two-channel audio recorder designed specifically for long-term autonomous field deployments. It comes in a  waterproof, lockable enclosure made from tough UV resistant plastic. It has space for four SD cards, each with up to 512GB storage capacity, meaning vast amounts of data can be recorded over one deployment. It is powered by 1-6 rechargeable 18650 batteries, providing 100-600 hours of recording time, and can also be powered using an external 6V or 12V power input. There are two microphone configuration options available: Standard (two-channels; one mic pointing left, one pointing downwards) and Left/Right. The omnidirectional microphones are highly sensitive and ultra-low noise, producing clear, crisp recordings.

We took the standard BAR-LT out to the field to record the dawn chorus.

How We Tested

We loaded the BAR-LT with a single memory card and four rechargeable 18650 batteries. We set a simple sunrise-based schedule, asking the recorder to record from an hour before sunrise to an hour after. The recorder then did the rest, using its in-built GPS to determine where in the world we were and therefore what time the sunrise was, basing start and stop times on this. We took the recorder to a nearby spot of woodland and fixed it to a tree using the included strap and a python cable lock (available separately) looped through the metal mounting plate at the back of the recorder. 

What We Found

Although we could have left the BAR-LT out for an extended period of time, we only left it out for a single night on this occasion. When we collected it, the two-hour recording had successfully been completed, with minimal battery or memory drain. Upon listening to the dawn chorus, the audio was wonderfully clear, and the microphones were very sensitive. Some examples of audio and sonograms are below.

Chiffchaff
Low frequency crow call over robin calls
Blackbird alarm call
Call and answer

Our Opinion

The BAR-LT was very simple to set up and, although the scheduling capabilities are powerful, the settings are logical and easy to navigate. The battery life and memory capacity were outstanding, making the unit a really great piece of kit for any long-term deployments or for use in very remote locations where access is infrequent. We were also particularly impressed with the handy battery removal tool that came with the kit – it saved a lot of time fiddling with the batteries and also demonstrated how well-thought-out the kit is. The only part of the design that we weren’t so keen on was the metal backplate for mounting the unit, which is slightly larger than the unit itself and doesn’t have any grip teeth like most trail cameras do. The tree we were mounting the unit to was relatively small, meaning the backplate got in the way a bit, and only just fit a python padlock after a bit of a squeeze. 

The recordings that the BAR-LT produced provided a wonderful soundscape and we were impressed with the quality of the recordings. There was very little ‘noise’ and the clarity of the recordings was evident, both when listening to the audio and when viewing the sonogram. The microphones picked up the sounds of the road surprisingly well, even though we thought we were far enough away to exclude them, demonstrating their impressive sensitivity.

We feel that the BAR-LT would be a great detector for conservationists and researchers who are looking to capture soundscapes for both current and future research. It performed well for bird song, but we think it would be equally as valuable to those wishing to record any terrestrial call. If you are interested in recording aquatic or low-frequency calls with the BAR-LT, please get in touch with us on customer.services@nhbs.com.


The BAR-LT is available through the NHBS website.

To view our full range of sound recorders and microphones, visit www.nhbs.com. If you have any questions on wildlife recording or would like some advice on the microphone for you then please contact us via email at customer.services@nhbs.com or phone on 01803 865913

Anabat Swift Firmware Update – May 2020

A new firmware update (V1.6) is available for the Anabat Swift. This update will introduce the following changes:

• Spanish language added.
• Low battery warning messages clarified
• Bug fix: “Constant Recording” didn’t always start when expected
• Bug fix: Display of months in the schedule editor
• Several usability improvements
• Improved menu layout

 

This update should be installed on all your detectors as soon as possible to ensure that they continue to run smoothly. Full instructions below.

Method 1 – Using an SD Card

Step 1 – Download the update file using this link and copy it to the root directory on your SD card. Make sure the file is named swift.adx. You can use the same SD card to update multiple Swifts.

Step 2 – Insert the SD card and fresh batteries into your Swift then power it on. Make sure that there isn’t a second SD card in the Swift. After a short time the following message will appear: “Swift update 1.6 available. Would you like to update?” Press “Yes” to start the update. Do not remove the batteries or power off the detector while the update is being installed. The red Mode lights will flash in sequence while the update is being installed. When the flashing stops, your Swift will restart with the new firmware. You may get a message about a new “bootloader available”; if so, please proceed with this update by pressing the “Upgrade” button.

If your Swift doesn’t detect the software update on the SD card, it may be using a very old firmware version. If this is the case you will need to follow Method 2 (below).

Method 2 – Using Insight and a USB cable

If you haven’t used your computer to update your Swift previously, you will need to follow Step 1 to install the necessary software on your PC. If you’ve already done this before, skip ahead to Step 2.

Step 1 – Install the required software as follows:

For Windows PCs, click here to download and run the following program to install the Anabat Swift USB Driver for Windows. Mac users don’t need to install this driver.

Next, click on one of the following links to download and run the installer for Anabat Insight. Please choose the download that matches your Operating System version.

• Anabat Insight for 64-bit versions of Windows 10, 8, & 7  (most computers)
Anabat Insight for 32-bit versions of Windows (usually older computers with less than 4GB RAM)
Anabat Insight for Mac

Step 2 – Ensure you are connected to the internet. Run Anabat Insight and install any Insight updates that are available. This will be indicated by a green bar near the top of the program window. Ensure the Swift’s battery holder is fitted with fresh batteries.

Step 3 – At the top of the Insight screen, click on the menu that says “Devices”. You should see “Swift” under this menu. Click on “Swift”. (*If you don’t see this then you may have an old firmware version that requires an extra step – in this instance, see below for further instructions).

Step 4 – A window will appear displaying your current firmware version and the latest version available from Titley Scientific. Press the “Download” button to download the new firmware to your computer. Once downloaded, you can press the “Start” button to install the new firmware on your Swift. Once complete, the text “Finished” will appear.

Step 5 – Once the installation is complete, remove the batteries and then reinsert them to restart your Swift with the new firmware. You may get a message about a new “bootloader available”; if so, please proceed with this update by pressing the “Upgrade” button.

*Additional step for old firmware versions
This step may be required before step 3 if you have a particularly old firmware version. Please follow the steps below and then resume the above procedure from step 3.
1. Remove the battery holder from your Swift.
2. Hold down the power button (in the centre above the screen) while re-inserting the batteries. Make sure to hold the button down for a few more seconds after getting the batteries in place. The screen on the Swift will remain black. (This step is required for this firmware update only and will not be needed in the future.)

Troubleshooting

If your Swift fails to turn on after the update, try removing the main battery pack and the clock battery (coin cell) for a few minutes. Reinstall the batteries and then try again.

If you are still encountering any difficulties with this process, please contact Andrew Dobson (andrew.dobson@titley-scientific.com) for assistance.

Watching Wildlife – New Browning trail cameras for 2020

Browning trail cameras are becoming an increasingly popular choice for conservationists and naturalists in the UK and Europe. Combining innovative design, quality workmanship and materials with competitive pricing, their high-quality specifications and comprehensive range of features make them ideal for monitoring wildlife. They are easy-to-use with minimal setup required and feature robust, camouflage casings together with a whole host of standard and additional features. Below we will showcase the new Browning cameras that are being released in 2020.

Recent additions to the Browning range include the Strike Force HD Max, Dark Ops HD Max, Recon Force Edge and Spec Ops Edge. Two further models, the Patriot and Recon Force Edge 4K, are also due to be released later in 2020. These cameras offer many of the great features currently present in the Browning range, but with a few exciting improvements, such as dual-lens technology, adjustable (and quicker) trigger speeds and long-range invisible infrared LEDs.

Dual-Lens Technology

Browning are one of the only camera manufacturers to use dual-lens technology. Currently available in several of their models, including the new Patriot, these cameras have a specially tailored lens and sensor combination for capturing daytime images. A second, military-grade sensor and lens allow the camera to take crisp night-time images with the use of infrared illumination. This dual-lens system means that footage can be taken in a range of light conditions without ever compromising on quality.

The Patriot is the latest addition to the dual-lens family of Browning cameras. Combined with the ability to capture 24MP images and 1920 x 1080p videos, the image quality from this camera is pretty hard to beat.

 

 

 

 

 

 

Trigger speeds

The Strike Force HD Max and Dark Ops HD Max, as well as the Spec Ops Edge and Recon Force Edge cameras, all feature adjustable trigger speeds of 0.2/0.3/0.4-0.7 seconds. Being able to alter the trigger speed allows you to tailor the camera to suit your location and target animal. This may take a little practice and experience, but even the tiniest tweak can make a difference to the composition of your image. At best it can mean the difference between capturing a great shot and being left with an image of a vanishing tail.

The Patriot features a trigger speed of just 0.15 seconds – ideal for capturing even the fastest moving animals.

Invisible infrared illumination

The Dark Op HD Max, Patriot and Spec Ops Edge all offer completely invisible night-time illumination. Provided by an array of infrared LEDs, this has obvious benefits when recording nocturnal wildlife. The camera will remain completely invisible, even when recording, making it more likely that you will capture several images of your subject. (It is also more likely that the animal will be filmed behaving naturally, rather than fleeing from the camera flash). Invisible LEDs also help to keep your camera safe from theft and vandalism; provided that it is sited in an unobtrusive spot and/or is well camouflaged, it is unlikely to be spotted, even when recording at night.

It is worth noting that invisible LEDs generally have a shorter illumination range than standard LEDs (usually by around 6-10m), and this should be taken into consideration when choosing and using your camera. For those wanting the best of both worlds, the Browning Patriot offers no-glow LEDs which illuminate up to 34m, a distance that is comparable to many standard LED cameras.

Standard camera features

All of the cameras in Browning’s range come with several excellent features as standard. Illumasmart technology automatically adjusts the infrared flash to make sure that your night-time footage is bright enough, without being over-exposed. Smart IR video tells the camera to continue recording as long as the animal is active within the sensor range. SD card management options let you overwrite old images on the SD card, allowing your camera to continue recording as long as the batteries will last. Some of the cameras, including the Recon Force Edge and soon-to-be-released Patriot, also include a built-in tripod, making setup in the field quick and easy.

The table below provides you with a quick comparison between the six new camera models. Or click on the images beneath to visit the product pages at nhbs.com where you can find full product descriptions and specifications along with up-to-date pricing.

Strike Force HD Max
#249809
• 18MP images, 1600 x 900p HD video
• Adjustable 0.3s-0.7s trigger speed
• ‘Zero-blur’ night-time images
• Smart IR video

 

 

Dark Ops HD Max
#249810
• 18MP images, 1600 x 900p HD video
• No-glow infrared LEDs
• Adjustable 0.3s-0.7s trigger speed
• ‘Zero-blur’ night-time images

 

 

Recon Force Edge
#249813
• 20MP images, 1920 x 1080p video
• 0.2-0.7 adjustable trigger speed
• Colour viewing screen
• Tree mount bracket

 

 

 

Spec Ops Edge
#249812
• 20MP images, 1920 x 1080p HD video
• Adjustable 0.2-0.7 second trigger speed
• No-glow night vision LEDs
• Colour viewing screen

 

 

 

Patriot
#249811
• 24MP images, 1920 x 1080 HD video
• 0.15 second trigger speed
• Dual-lens technology
• No-glow infrared LEDs

 

 

 

Recon Force Edge 4K
#249815
• 32MP images, 4K video
• 0.4-0.7 second adjustable trigger speed
• Colour viewing screen
• Built-in tree bracket

 

 

Head over to nhbs.com to explore the complete range of Browning cameras or take a look at our Watching Wildlife guide on how to choose the right trail camera.

 

The NHBS Guide: Where to hang and how to maintain your nest box

House Sparrow Terrace FSC Nest Box
House Sparrow Terrace FSC Nest Box

There is a shortage of natural nesting sites for birds and this has played a part in the decline of some of the UK’s most iconic species. It is easy to provide nesting opportunities for birds in our gardens and outdoor spaces, however, and with spring rapidly approaching, now is the ideal time to start thinking about nest boxes for your local birds. Locating your nest boxes correctly is one of the key determinants in how likely birds are to occupy them and with this in mind we have put together some answers to the most frequently asked questions about nest boxes – covering where and when to put up your boxes, cleaning and maintenance as well as dealing with predators.

You can browse the full range of nest boxes we sell online and, if you’re keen to find out more, check out the BTO Nestbox Guide, which is packed with essential information.

When is the best time to put up nest boxes?

There really is no ‘best’ time to put up nest boxes.  By putting up boxes in the autumn you can provide much needed winter refuges for roosting birds and possibly increase the chance of them staying and nesting there when spring comes around.  However, any box erected before the end of February stands a good chance of being occupied if it is sited correctly.  Even after February there is still a chance that they will be used; tits have been known to move in during April and house martins as late as July. Therefore, put your nest box up as soon as it is available rather than leaving it in the shed!

Where should I hang my nest box?

1B Schwegler Nest Box
1B Schwegler Nest Box

When it comes to nest boxes, the ‘where’ is much more important than the ‘when’.  Nest boxes must provide a safe, comfortable environment and protect the inhabitants from predators and the worst of the weather.  This may be difficult to achieve; a safe location out of reach of predators may also be exposed to the weather, so have a good think before you start bashing nails in.

Nest boxes can be fixed to walls, trees or buildings and different styles of boxes are available which are suitable for each.  Fixing to artificial surfaces means the growth of the tree does not have to be considered which is useful for Schwegler and Vivara Pro nest boxes which last for at least 20-25 years: a significant amount of time in the life of a small tree.  If you’re planning any building work, remember that some bird and bat boxes can also be built directly into walls and roofs.

Incubating Great tit – Photo: Simone Webber

Locating boxes out of the reach of predators can be a challenge (weasels can climb almost anything), but there are things you can do to make it harder for them.  Boxes in gardens should be located where cats cannot get to them and prickly or thorny bushes can also help to deter unwanted visitors. Some nest boxes also have anti-predator designs (e.gSchwegler’s 1N deep nest box).  It is best to avoid nest boxes that have a combined bird feeder and boxes should not be sited too close to the bird feeders in your garden. Visitors to the feeder may disturb the nesting birds and the feeder could attract unwanted attention from predators.

For many species the height of the box is not crucial.  However, by placing it at least two metres off the ground you can help prevent predators and human interference.  The direction of the entrance hole should be away from the prevailing wind and it is beneficial for there to be a clear flight path to the box.  Crucially, the box should be also be sheltered from the prevailing wind, rain and strong sunlight, so in most UK gardens aim for an aspect of northerly, easterly or south-easterly.  If possible, position the box with a slight downward angle to provide further protection from the rain.  Some species do have specific requirements for where a box should be sited (e.g. house martins and swifts nests need to be sited under the eaves); please see our product details for particular instructions for different species. Wherever you position the box, try to ensure that you can still get access to it for maintenance.  And finally, if possible, try to put it somewhere where you can see it, or invest in a nest box camera, so as to maximise your enjoyment of watching wild birds in your garden.

Is there anything else I can do to deter predators?

Entrance hole protection plate
Entrance hole protection plate

As already mentioned, location is the most important factor when trying to deter predators.  Whilst some mammals can climb walls, a blank wall is fairly inaccessible so can be a good choice.  Ensure that the box cannot be reached by a single jump from a nearby branch or the ground.

Box design can also help deter predators.  An entrance hole reinforced with a metal plate will prevent grey squirrels and some avian predators from enlarging the hole and gaining access to the nest.  Woodcrete and WoodStone boxes are too hard for any predator to break through.  However, you can also reinforce a nest box yourself with metal protection plates or provide additional protection with prickly twigs.  Deep boxes may prevent predators reaching in and grabbing nest occupants, although some tits have been known to fill up deep boxes with copious quantities of nesting material.  If using open-fronted nest boxes, a balloon of chicken wire over the entrance can work well.  If you live in an urban area, cats are likely to be the most common predator.  Gardeners have long since used various methods to exclude these unwanted visitors, such as pellets, electronic scarers and even lion dung (available from your nearest obliging zoo), all with varying degrees of success.

Great tit eggs – Photo: Simone Webber

How do I manage the nest box?

A well-designed nest box will only need one annual clean in the autumn. It is important not to clean out nest boxes before August as they may still be occupied.  Wait until autumn and then remove the contents, scattering them on the ground some way from the box to help prevent parasites re-infesting the nest box. Wear gloves and use a small brush or scraper to remove debris from the corners. Boiling water can be used to kill any parasites remaining in the box, but remember to leave the lid off for a while for it to try out. Do not wait until the winter to clean out nest boxes as birds may already be roosting in them. The tit species do a thorough clean out of any old nesting material or roosting debris before they begin nesting again but it will save them energy if you can help out.

How many nest boxes do I need?

House Martin Nests
House Martin Nests

The exact amount of boxes required will depend on the species and the surrounding habitat.  As a very general rule of thumb, start with ten assorted small boxes per hectare (ensure uniform spacing between boxes).  Keep adding several more boxes each season until some remain unused and hopefully you’ll hit on the correct density of boxes.  However, even if you only have space for one box it is still worthwhile, providing it is suitably located. Many UK bird species need all the additional nesting habitat they can get.

If you are interested in installing a nest box camera into one of your bird boxes, take a look at our “How to choose the right nest box camera” article, for more information on choosing the model that’s right for you.

Further information about individual nest boxes, including advice on positioning, can be found alongside each nest box in our range.  If you have any other questions or would like any further advice, then please get in touch with our team of Wildlife Equipment Specialists.

 

NHBS: In The Field – Hi-Sound Stereo Parabolic Microphone

Hi-Sound Stereo Parabolic Microphone

Parabolic microphone dishes are a great tool for wildlife recording. They offer directional recording by isolating and amplifying sounds within a narrow band (in front of the microphone) without the addition of excessive self-noise (the noise created by the microphone when sounds are artificially amplified). This means that even very quiet sounds can be heard clearly from a distance. These systems are particularly popular for pinpointing birdsong and producing clear and sharp recordings, although they can be used to record any wildlife.

The Hi-Sound is a parabolic dish ideal for wildlife recording

We tested the Hi-Sound Stereo Parabolic Microphone which features a set microphone sensors separated by a baffle to create stereo recordings. Stereo recordings are more immersive and realistic than mono recordings as they accurately reproduce sounds coming from different directions. Each microphone sensor has excellent performance and increases the gain (volume) of recordings whilst keeping the self-noise low, meaning your recordings will remain clean and crisp.

Hi-Sound setup diagram

Setting Up

The Hi-Sound is easy to put together and is powered through plug-in-power (where the power is supplied through an attached recording device). We paired the Hi-Sound with the Tascam DR-05X portable handheld recorder and a pair of standard, good quality headphones. Our settings on the Tascam were:

Mic Power: On (very important! If your recording device does not detect the microphone, double-check this setting is on)

Low Cut: 80Hz (this removes some of the inherent noise at the lower frequencies)

Pre Rec: Off (you may want this on if you are recording wildlife that you might miss. When on, the Tascam will record the previous two seconds before ‘record’ was pressed)

Auto Tone: Off

We chose a still, dry day to test this microphone. For optimal recording, it is useful to go somewhere away from roads or background noise. For example, we took the Hi-Sound into a bird hide and although it picked up a wader call beautifully, it also picked up the floorboard creaks, coat ruffles and binocular case velcro from everybody else in the hide. You’ll be amazed at how much background sound there is in what you thought was a quiet setting!

We tested the Hi-Sound along a riverside walk to record the sounds of the water and how different noises could be pinpointed by aiming the parabolic dish. We also went to some quieter locations to record birdsong and compared recordings between using the Hi-Sound and just using the inbuilt Tascam microphone showing the benefits of this parabolic dish.

What we found

The Hi-Sound produced much cleaner, crisper sound and made recording specific bird calls a lot easier. Aiming the parabolic dish correctly took a bit of practice but once mastered, it was incredibly useful for pinpointing a bird, even if we weren’t able to see it. The clear plastic dish helped with this as without it, most of our view would have been obstructed. The stereo aspect of the recordings also made it a lot easier to track birds if they moved. 

It was fascinating to aim the Hi-sound at different points along a river in order to pinpoint different sounds. This demonstrated how good the dish was at isolating sounds from the narrow band in front of the microphone.

Our Opinion

The Hi-Sound is a fantastic piece of kit for wildlife recording. Although the cost of a parabolic microphone can be a significant leap from a standard handheld recorder, their performance and ability to isolate calls and sounds make the investment well worth it.

The Hi-Sound was particularly good at amplifying very quiet calls or calls from a long distance away without adding noise or compromising on recording quality. This is something that the Tascam just wasn’t able to do by itself. The microphone is easy to use, although perhaps not as easy to transport due to its size and shape. 

We feel that the Hi-Sound will impress both the wildlife recording beginner and the entry-level professional.  The Hi-Sound completely transforms a walk through nature, providing a whole new element to bird watching. If you have never thought about wildlife recording before, I would urge you strongly to do so. It is a rewarding and captivating hobby that is definitely enhanced with the use of a parabolic microphone such as the Hi-Sound. If you are a professional who regularly records, then the Hi-Sound would be valuable to refine your recordings and produce excellent quality audio.


The Hi-Sound Stereo Parabolic Microphone is available through the NHBS website.

To view our full range of sound recorders and microphones, visit www.nhbs.com. If you have any questions on wildlife recording or would like some advice on the microphone for you then please contact us via email at customer.services@nhbs.com or phone on 01803 865913

NHBS: In The Field – SiOnyx Aurora and Aurora SPORT

SiOnyx Aurora

The SiOnyx Aurora and Aurora Sport are two new night vision monoculars that offer ‘colour night vision’ – something new to night vision technology. A night vision scope is a handy tool for both the professional ecologist and the keen naturalist, especially at this time of year as the evenings draw in and the light levels fall. We wanted to test the Aurora’s night vision capabilities, along with the other features it offered to see if it lived up to expectations.

We tested the Aurora and the Aurora Sport. Both use an Ultra Low-Light CMOS sensor and should perform the same in low light settings. The main difference between the two models is that the Aurora has a built-in GPS, accelerometer and compass, and comes with an extra year warranty, whereas the Aurora SPORT is a budget version without these features and a 1 year warranty. Both cameras have up to 2 hours of battery life on a fully charged internal battery and records in 60 frames per second in either 360p or 720p resolution. The cameras also have a host of extra features including burst mode, time-lapse, panoramic view, self-timer, loop mode, slow-mo (shutter control) and HDR (High Dynamic Range) mode.

The SiOnyx Aurora SPORT (pictured left) and the SiOnyx Aurora (pictured right)

Setting Up

We ventured out to test the Aurora in daylight, twilight, and night conditions to see how the camera performed. The Aurora was very simple to use with each setting requiring a simple twist of a dial. Even the accompanying smartphone app was intuitive and quick to set up, allowing multiple users to easily view and record footage without needing to look through the device itself. The camera also had a tripod mount thread which was useful when wanting steady shots.

What we found

The Aurora was most impressive at dusk. Even at light levels when a phone or digital camera is no longer any use, the Aurora’s Day Mode footage is still surprisingly bright, if a bit noisy. Once switching to Twilight mode, the reduction in visual noise and clarity of bright footage was outstanding and is where we think this camera really excels.

The night mode would have been more useful if used with an IR illuminator, something that we would recommend if you are looking to use this camera in complete darkness, but it is still a very useful tool for when your own low-light vision starts to fail you. For example when watching deer, only a slight silhouette of a single deer could be made out by our own eyesight, and it was only with the use of the Aurora that we were alerted to the presence of the rest of the herd.

Our Opinion

The SiOnyx Aurora and Aurora Sport are two great night vision cameras. We were surprised at how easy the camera was to use and we were impressed by its low-light capabilities. The video and photo quality is at a lower level than most camera technology currently, but it is respectable for a night vision recorder. It is also worth noting that when viewed through the view-finder, the footage looked clear and crisp.

The app was a great feature when walking with other people as it meant everyone could see what the camera could view without fumbling around to pass the camera amongst each other in the dark. For watching more timid wildlife, the app was too bright and the camera’s start-up chime needed to be turned off avoid spooking animals.

Our favourite mode was definitely Twilight Mode. This was especially useful when we could see subjects with our own eyes, but details were hard to make out and ordinary spotting scopes or cameras were struggling. The night mode was best when our eyesight began to fail and the camera highlighted subjects we would otherwise have missed. Without using an illuminator, the camera was ineffective as it became completely dark. An illuminator would greatly improve the performance of the scope in Night Mode and we would highly recommend one if you are thinking of using the camera as both a low light and night vision camera.


The SiOnyx Aurora and the SiOnyx Aurora Sport are available through the NHBS website.

To view our full range of night vision and thermal cameras, visit www.nhbs.com. If you have any questions on night vision or would like some advice on the best camera/scope for you then please contact us via email at customer.services@nhbs.com or phone on 01803 865913

Watching Wildlife – Our New and Favourite Camera Kits

The Hedgehog camera kit

Our brand new Hedgehog Camera Kit includes a high-quality wooden hedgehog nest box, designed and tested by the Hedgehog Preservation Society. It also includes a tiny camera that can easily be screwed to the roof or side of the box with no modifications required. The camera then transmits footage from inside the hedgehog box to your TV or smartphone (3 versions are available) for you to view your hedgehogs from the comfort of your home. With the use of a USB Capture device (sold separately), you can also view footage on your computer/laptop and set the camera to record with motion detection, meaning you won’t miss a thing overnight.

If you already have a wooden hedgehog nest box and would like to attach a camera to it, please feel free to contact us for advice on 01803 865913 or at customer.services@nhbs.com.

Nest Box Camera Kit – Wired Camera

The Wired Nest Box Camera kit is a great choice if you haven’t used a nest box camera before. The kit comes with everything you need to get started, including a camera-ready nestbox. A wired camera produces reliable footage and is easy to set up following the step-by-step instructions.

 

IP Nest Box Camera

For those who have used nest box cameras before, or want more from their camera, an IP nest box camera is a good next step. With a bit of setup, you can livestream the footage from this camera to anywhere in the world.

 

Bushnell NatureView Live View

A NatureView Live View is a great camera for garden wildlife. It features a plug-in screen that helps you get your camera positioned correctly when setting up, and also comes with 3 close focus lenses for when you would like to record smaller animals such as birds or small mammals. It features a quick 0.2 second trigger speed and takes 14MP with 1920 x 1080p footage.

 

Browning Dark Ops Pro X 20MP

Browning’s Dark Ops Pro X 20MP is another great trail camera with some impressive specifications for its price. It records HD videos (1600 x 900 HD+) and 20MP images and has a 0.22 second trigger speed – great for capturing faster wildlife such as foxes or deer. It also features a built in viewing screen for easy setup and No-Glow IR LEDs that are invisible to humans or wildlife.

Starter Bundles

If you are looking to buy a trail camera and want to start capturing images and videos 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 to ensure you have everything you need to get started.

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.

NHBS: In The Field – Bushnell CORE DS Low Glow

Bushnell CORE DS Low Glow

Bushnell trail cameras have always been popular among ecologists and researchers alike, but their famous Aggressor range of cameras has become outdated as trail camera technology has advanced. New for 2019, the Bushnell CORE range features four high specification trail cameras with the latest technology (more about the differences between the four cameras can be found here). We wanted to test one of these new cameras to see how it performed.  

We tested the Bushnell CORE DS Low Glow Trail Camera (DS standing for ‘dual-sensor’). Bushnell’s dual sensor system promises better day and night photos/videos, with one sensor dedicated to each. A 30MP image size and 920×1080 HD videos also indicate sharp, high-quality footage, but this is not always the case. The best way to see the true image/ video quality is to view sample footage from the camera.

Setting Up

We set the CORE up at a badger latrine in a wood in Devon. The camera was simple to set up, and the colour viewing screen came in very handy when trying to get the best angle. Without this feature, it can be very difficult to ensure that the camera is pointing in the right direction. The screen also displays a simple and user-friendly settings menu which was easy to navigate and check. The settings we used in this instance are as follows:

Mode: Video
Video Size: 1920×1080 (30fps)
Video Length:  15 seconds (the videos below are trimmed from originals)
Interval:3 seconds
TimeStamp: On
Video Sound: On
Sensor Level: Auto
Camera Mode: 24 hrs

As we were leaving the camera in a public woodland, we secured it in place with a compatible Python cable lock. The No Glow equivalent might also be a camera to consider if you are setting a camera up on public land and you want extra security.

What we found

The Bushnell CORE caught several videos over the one evening that it was set up. These clips can be viewed in the video below. The black and white IR footage was very impressive. We found it beautifully clear and very smooth, even at 30 fps (the camera has an option of 60fps). The IR flash illuminated the subject without any wash-out whilst remaining bright enough to reveal plenty of detail.  The low-light and day colour footage wasn’t as crisp but was still lovely and smooth. The fast trigger speed was especially apparent in a clip showing a herd of deer running across the river. The first deer are barely halfway across the screen before the video starts, despite the speed at which they were running. 

Our Opinion

We were impressed with the Bushnell CORE DS Low Glow Trail Camera, especially with the night videos. The front-facing colour screen was a key feature that made set-up and camera positioning much easier and is something that we think can either make or break a filming session. The dual sensor is definitely worth the price difference for the night videos. The colour videos were not as crisp but the camera is still excellent quality with an outstanding trigger speed and perfectly suitable for the needs of most researchers and ecologists.

 


The Bushnell CORE DS Low Glow is available on the NHBS website.

To view the full range of Bushnell CORE cameras, along with other ranges of trail cameras, visit www.nhbs.com. If you have any questions on camera trapping or would like some advice on the best camera for you then please contact us via email at customer.services@nhbs.com or phone on 01803 865913.

The NHBS Guide to Bat Detecting for Beginners

How to watch bats

Watching bats can be a fascinating and rewarding hobby. If you want to go out and watch bats yourself, you may not have to travel as far as you think. Bats live all over the UK in the countryside, towns and cities. Head down to your local patch of woodland, park or even your own back garden around sunset and watch the sky. Some bats fly quite high in the sky around the tops of trees, others fly lower, even at eye level. If you have a large pond, river or lake nearby, watch the surface of the water and you might see a Daubenton’s bat skim across the surface catching insects. Warm, dry and relatively still nights are best when it comes to bat watching. You are more likely to see bats around sunset and sunrise and they can be seen between March and October. 

An Introduction to Bat Detectors

To really immerse yourself in the world of bats, it is worth using a bat detector.

Bats use calls for communication, navigation and hunting but these are at frequencies above that of most human hearing. So even if you’re watching dozens of bats above you, you’re unlikely to be able to hear their calls. Bat detectors are devices that convert these ultrasonic calls into audible sounds and because different bat species call at different frequencies, bat detectors can even help you identify which bat is calling. Bat detectors are great fun to use and can help you learn a lot about bats. There are several different types of bat detectors on the market, at varying prices and with varying features. We’ve highlighted some of our favourite, entry-level bat detectors below.

Magenta 4 & Magenta 5 – Heterodyne

Our most popular range of beginner detectors are the Magentas. The Magentas are incredibly easy to use with a frequency dial to allow you to tune to a certain frequency, a front-facing speaker so that you can hear the converted bat calls, and a volume dial. They use a method of call processing called Heterodyne which works by tuning to one frequency at a time. The only difference between the Magenta 4 and the Magenta 5 is that the 5 has a digital display of the frequency that you are tuned to whereas the 4 has the frequencies on the tuning wheel which is lit by a small light. You can use Magentas with headphones and even record the outputted calls with a recorder (available separately).

Batscanner – Super-Heterodyne

The Batscanner is one of the easiest detectors to use, automatically scanning the whole frequency range and adjusting accordingly when it detects a bat, displaying the peak frequency on the digital display. This means you don’t have to tune anything and you won’t miss a bat because you’re tuned to the wrong frequency. The call output is clear and the Batscanner intelligently filters out non-bat low frequency calls giving you a clean, noise-free output.

Baton & Duet – Frequency Division

The BatBox Baton is perhaps even more simple to use than the Magentas, with just 1 button operation – the on/off button. You do not need to tune this detector – it will automatically detect all frequencies simultaneously as it works through ‘frequency division’, where all ultrasonic calls are divided by a factor of 10, pushing them into the human hearing range. Audio is played through the front facing speaker and when the Baton is plugged into a computer, you can see sonograms (visual representation of bat call) on the software included with the Baton.

The BatBox Duet is a similar but more sophisticated detector that is great if you want to take your bat detecting to the next level. It used two modes of call processing: with heterodyne, you can tune the detector with the frequency dial and this is displayed on the backlit screen, much like a Magenta, but the detector also processes the ultrasonic sounds in frequency division mode and this can be captured using an audio recorder (available separately).

Echo Meter – Full Spectrum

The EchoMeter is a completely different type of bat detector but one that is very popular and has many amazing features, ideal for all levels of bat enthusiasts. It plugs into a compatible phone or tablet and with the help of a free app, turns your phone/tablet into a fully functional bat detector. The app displays live sonograms of bats and an intelligent algorithm identifies the most likely bat species based on the calls, all in real-time. The app can GPS tag your sightings and you can record, replay and download bat calls.

How can I help bats?

It is easy to encourage bats into your garden and there are many things you can do to help your neighborhood bats. Changing the way you garden and putting up a bat box can help tremendously. Have a read of our guide to helping your local bats for some ideas and inspiration.

Other useful equipment and books

Listed below are some great kit and books to get you started or develop your knowledge on bat detecting and bat watching:

DIY bat detector
£24.98
If you have some basic soldering skills and fancy having a go at a DIY project, our DIY Bat Detector Kit has everything you need to build your own, simple heterodyne bat detector.

 

Zoom Handy Recorder: H1n
£95.00
This small, handheld audio recorder is ideal for plugging into your bat detector and recording the bat calls you are hearing. Recordings are stored on an SD card and can then be viewed on a computer to analyze further.

 

Petzl Tikkina Headtorch
£19.99
This handy headtorch will keep your hands free when you’re trying to change settings or navigate in the dark. The Petzl Tikkina has a bright, clean 250 lumen beam and has a simple, one-button operation.

 

A Guide to British Bats
£3.50
FSC’s ‘A Guide to British Bats’ is a fold out, laminated guide to help you identify bats through physical appearance and call frequency.

 

British Bat Calls: A Guide to Species Identification
£31.99
This practical guide is perfect for learning more about bat detectors and bat species identification. It covers topics such as how bats use sound, bat detection methods,  analysis software, recording techniques and call analysis.

 

The Bat Detective: A Field Guide to Bat Detection
£24.99
This field guide is perfect for beginners wanting to start learning how to identify bats from their calls. As each topic is explained references are given to the relevant tracks on the CD. The 48 tracks found here are the first ever compilation of British bat recordings on CD.

Top ten books and wildlife equipment for summer

 

NHBS has collected together our summer best sellers in this top ten list of must have books and 10 essential wildlife products for summer and added as many special offers as we can.

So here are the Top Ten Books and Equipment for the Summer:

 

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Telescopic Pond Net
£32.99

Sweep Net
£24.50

Spring Frame Butterfly Net
£26.50

 

Bat Box Duet Detector
£255.00

Elekon Batscanner
£219.00
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Browning Strike Force HD Pro X / Kit
£149.99

Triplet Loupe Hand Lens
20x/10x
£36.50/£32.50

 

Compact 20W Actinic Heath Moth Trap
£149.00
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Hawke Optics Nature Trek Binoculars series
£132.95
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Petzl Actik Headtorch
Available in 3 colours
£33.95

Rocky Shores
Hardback| Feb 2019| £29.99 £34.99The Garden Jungle
Hardback| Jul 2019| £14.99 £16.99
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Photographic Field Guide to Insects of Southern Europe and the Mediterranean
Flexibound| Sept 2017| £27.50
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Bat Roosts in Trees
Paperback| Oct 2018| £39.99

Field Guide to the Orchids of Europe and the Mediterranean
Paperback| May 2019 £26.99 £29.99

Oceanic Birds of the World
Flexibound| Aug 2019| £19.99 £26.99

Fungi of Temperate Europe
(2 Vol. Se
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Hardback| Aug 2019| £74.99 £94.99
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Field Guide to the Ladybirds of Britain and Ireland

Paperback| Nov 2018| £24.99

 

Garden Birds
Hardback (signed) | Jul 2019| £47.99 £59.99
Paperback| Jul 2019|
£27.99 £34.99

New Flora of the British Isles
Flexibound| Feb 2019| £59.99