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What do I need?

If you're looking at taking your bird listening a little further, for example you're looking to record bird sounds or even make your own sonagrams, then you might need to get some extra kit to get you started. There are a variety of options depending on what you'd like to achieve from your recordings.

If you're looking to start recording bird sounds, either out and about or for nocmig, there are various bits of equipment you can invest in. They cover a range of prices, so it's all about finding what's right for you.

In essence, there are two main elements to recording sounds. The first is a microphone, which is used to capture the sounds. The second is a device to save your recordings. In some instances, for example on smart phones or handheld recorders, these are all built in to one device, but you will find that improving the microphone and recorder will give you a higher quality recording. There are a number of options listed below that may be right for you.

To interpret your recordings, you will also need a computer with the right software, and if you'd like to listen really carefully, then good quality headphones are useful, too.

Please note, we do not endorse any particular brand or products. This guide will help with your set-up, but we encourage you to do your own research on what makes, models and prices are right for you.

ALL IN ONE DEVICES

Combined microphones and recorders

Your smartphone

Most smartphones will have a built-in voice recorder that you can use to record bird sounds whilst you're out and about. You can then listen back to them, edit them on your phone and so on, but remember, you will be limited by how powerful the phone's microphone is. You can also download apps that will help you interpret bird sounds on a basic level - see below for some different options. You can also download different apps to improve the quality of your recordings, saving them in .wav formats instead of the default .mp3.

You can use a smartphone for nocmig, but on its own this is risky. You will need to keep it plugged in to a power source all night, and the phone will risk overheating. It will need waterproofing against dew and rain. Once again, your recordings will only be as good as your microphone, so you may wish to invest in an external microphone that can be plugged in to the phone jack.

Your laptop

Like smartphones, most modern laptops will have a built-in voice recorder that you can use to record bird sounds. However, these microphones are often poor and you will be limited in what you can record.

Like your mobile, you can use a laptop for nocmig, but on its own this is risky. You will need to keep it plugged in to a power source all night, and the device will risk overheating. It will need waterproofing against dew and rain. Once again, your recordings will only be as good as your microphone, so you may wish to invest in an external microphone that can be plugged in to the phone jack. This will help with weather proofing, too.

Portable handheld recorder

Portable handheld recorders come in various shapes and sizes, but are a popular choice with birders who want to record continuously whilst they are walking around. Many of them allow you to listen to playback immediately through built-in speakers, which is another advantage. They can also be used for nocmig, provided that they are weather-proofed.

Something like a cheap Dictaphone won't be powerful enough, so check the reviews or buy from a dedicated natural history website. You will also need a wind muffler to reduce noise from the weather.

Some things to look for when making your choice include checking the quality of in-built microphone, the AC power option, the ability to record .WAV files and the ability to accept an SD card. For long recordings, you will need at least 64GB SD card. You may want to improve the device at a later date, so it's worth checking if your recorder has ports for other external microphones.

Top tip: Many nocmiggers will place their portable handheld recorder in a plant pot or bucket, sometimes lined with a muffler like bubblewrap, to reduce ambient noise and eliminate sound from ground level, while leaving the ’sky view’ open.

Passive wildlife recorders

Passive wildlife sound recorders are ideal for monitoring birds and other terrestrial wildlife, they can also be used with hydrophones to record underwater. You fix them in a specific place, like to a tree or post, set the device and leave it to record. They are the audio equivalent of a trail camera in many ways, as you can walk off and leave them to record for hours at a time. More advanced models can also be pre-programmed to record at specific times.

Many are tough, weatherproof, easy to mount and have a long battery life. The most popular models have microphones built in and are powered by standard batteries, so don't require an external power source. Many come with a protective casing and may be compatible with specific apps. You will need the relevant software to interpret the data. You can even buy replacement microphones and solar-kits for some models.

Different external microphones come with pros and cons, depending on what you'd like to achieve from your recordings. They will need to be plugged into a recording device, such as your phone, laptop or a professional recorder, so make sure that you buy the right cables and that the devices are compatible.

improving the quality of your recordings

External microphones

Clip-on microphone

Clip-on microphones are a cheap and easy way to improve recordings on your phone or laptop. Check the connections are compatible with your chosen recording device (for example, do you need a USB connection, an iPhone connection, etc.?). You may need to buy additional cables, but these are handy options if you want to attach your microphone to your coat or bag. The range on these microphones won't be too powerful, but may be useful if you're just starting out.

Shotgun microphone

Shotgun microphones are a step-up again. They are unidirectional, so pick up sounds from the direction they are pointed. They are more powerful than in-built mics of handheld sound recorders and will give a better quality recording.

A popular choice with serious birders, they are light enough to be carried around attached to a rucksack for constant recording, or you can rig them up for nocmig. Ideally you would use a tripod to provide a stable base, but we have seen some creative solutions. Look for a model with a screw thread that allows you to attach it to a standard tripod.

Parabolic dish microphone

Parabolic dishes are the most expensive option for external microphones, but give the best in quality recordings. They are larger and bowl-shaped, giving high amplification of the subject pointed at, while also including some of the ambience around it but without the amplification. There are pros and cons to this; you get a wider field of 'view', but you may get more noise from roads, gardens, etc. than with a shotgun mic. Some of them can be folded down or rolled up to be more portable.

A popular choice with serious sound-recordists, you can carry them around for constant recording, but bear in mind they are large, cumbersome and you will lose one of your hands to carrying and directing it. You can rig them up for nocmig, ideally you would use a tripod to provide a stable base. Check the threading on the microphone to make sure they are compatible.

Parabolic microphones can be stereo, which creates a somewhat more spacious recording and helps the listener to separate the main subject from the background by directional clues. However, it is a weird kind of stereo with a big bulge in the middle, which is why we often prefer the next kind of microphone.

Binaural stereo (e.g. SASS)

A“binaural” microphone setup imitates the way a human listens. There are two microphones involved, and like the two human ears, the mics are placed about seven inches apart. There are detailed guides on how to create your own set-ups, and the result will be an immersive, ambient experience, particularly through headphones. We love the dyamic nature of binaurual stereo - as if you are in the middle of the action - and the natural-sounding ambience. However, lacking the amplification offered by a parabola or the everything-but-the-subject elimination of a shotgun mic, binaural recordings risk being more distant-sounding and with a less clear separation of main subject and background. The solution is to anticipate recordings well in advance and place your microphones strategically, often leaving them in place for a very long time and retreating to watch from a distance, in the hope that the birds of interest will at some point vocalise right beside your gear.

We like to use a ‘SASS’ casing (Stereo Ambient Sampling System) and high quality omnidirectional mics for binaural stereo The original Crown SASS is no longer manufactured, but you can find them on eBay or even build your own. Alternatively, some passive wildlife recorders such as the Wildlife Acoustics SM4 are essentially binaural stereo recorders and have the added advantage of being programmable and extremely rugged.

Recording devices do just that. They record. Often designed by the music industry, there are a number of brands to choose from, so check compatibility and reviews before buying.

taking your recordings to next level

Field recorders

Recording devices

These can overlap with the passive recorders above, depending on whether or not your recorder has speakers, whether it requires connecting to the mains, and so on.

These recording devices are powerful and have a large memory (provided you have the right SD cards). As many were not designed for wildlife recording, they're not optimised for this. Many can't playback as they lack speakers, they may require a continual power source (like being plugged into the mains), they may not be waterproof, you will need headphones to listen live and you need to download the recordings to interpret them, but when all is said and done, they are of a higher quality than a cheaper handheld recorder.

They are popular with nocmig when combined with an external microphone, like a parabolic dish or a shotgun microphone.

In addition to the hardware, you will need software if you are going to interpret bird sounds. These range from apps on your phone or tablet to websites to apps for your PC or laptop. There are a range of prices and functions to choose from, and we recommend that you watch tutorials before making your decision.

interpreting your recordings

Apps and software

Apps

The Merlin Bird ID app is a popular app created by the Cornell Lab of Ornithology in the US. The app will record the ambient sounds picked up by your phone (with or without external microphone) creates a live sonagram of what the phone is hearing. It uses AI (or rather machine learning) to interpret the image of the sounds for you, with varying degrees of success. In this way, it can often tell you exactly what you are hearing. The technology isn't perfect, particularly outside the US, and can be fooled (e.g. a squeaky bin lorry might be interpreted as a Common Loon!), so use with caution. It's like having a best friend in your pocket that can tell you what bird sounds are; as a teacher, it won't improve your learning much. It does save recordings, though, and can be handy for capturing a specific, unidentified sound whilst you're on the move.

Other popular apps include BirdNET, the Collins Bird Guide, BirdCallXeno and BirdSounds Europe.

Bird sound websites

There are multiple bird sound websites (as well as our own) out there, where you can listen to a variety of recordings from different geographical zones, taxa and so on. Xeno Canto and the Macauley Library are popular and have vast collections, and are useful for comparing recordings.

Making sonagrams

If you are recording lots of data, for example through nocmig or through a passive wildlife recorder, then software will help you visualise the data (using your eyes as well as your ears).

Measurements on a sonagram will be one of the best ways to secure the identification. We make ours in Raven Pro, although there are several other applications that can be used for this, depending on how much you want to spend. Depending on how tech-savvy you are, check some tutorials beforehand to decide what is best for you. Audacity is a popular application for this purpose. Consider whether you want your headphones to exclude direct sound not coming through your equipment. Like some of us you may like to use ‘open headphones’ which let you hear what is going on behind you, while you listen to what is coming through your directional microphone pointing ahead of you, via your recorder.

Find out how to interpret sonagrams here.

As well having the kit, you may find you need additional bits and bobs to make your recording journey run smoothly. We have highlighted some of our top recommendations below.

Don't get caught out

Additional kit

Headphones

We recommend investing in a set of good quality headphones. They are invaluable for listening live to bird sounds and for interpreting your recordings, as they will focus your hearing and minimise background noise.

Tripod

For mounting a handheld recorder, a shotgun mic or a parabolic dish. Check the threading beforehand, although you can get creative with securing your devices, and check the weather before leaving kit out all night!

Appropriate cables for connections

Make sure that any additional cables are compatible with your recorders, microphones, phone, laptop, etc. There will be nothing more frustrating than buying all the gear and then not being able to connect it.

SD cards

Check if your recording device needs an SD card and what sort and size. For constant recording, we recommend at least 64GB.

Portable charging devices/powerbanks

Some devices will need to be connected to a constant source of power (or if using a phone/laptop, may run out quickly with constant use). A portable charger or powerbank may be required, but make sure you weather proof it if leaving outside. Some batteries may lose power quicker in cool weather, too.

Spare batteries

Some devices require AA or AAA batteries, so make sure you're carrying spares if using your recorder whilst on the move.

Wind mufflers

Wind mufflers fix over microphones to cancel the worst of the weather and give some protection from the rain. Check which ones fit your microphones -the bigger, furrier ones are best.

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