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XENO-CANTO
SHARING BIRD SOUNDS FROM AROUND THE WORLD* Advanced Search
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NOTE: Many features of this site will not work without javascript STEPPE WHIMBREL _N.P.ALBOAXILLARIS_ Steppe Whimbrel, Maputo, Mozambique © Callen CohenXC308218
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Whimbrel (Numenius phaeopus alboaxillaris) · 'bubbling' call, aggression, call, male, songGary Allport
In February 2016 two Steppe Whimbrels _Numenius phaeopus alboaxillaris_ were found in Maputo, Mozambique, drawing attention to this little-known bird that was once thought to be extinct. Their distinctiveness in the field (see right bird on picture together with "normal" Whimbrel) has led to a global taxonomy project that is re-examining the Whimbrel and its close relatives. _alboaxillaris_ may be more than ‘just’ a subspecies, but it is so little known that it is hard to draw definite conclusions. Gary Allport shares recordings that document the birds inMozambique.
WHAT IS XENO-CANTO?
xeno-canto is a website dedicated to sharing bird sounds from all over the world. Whether you are a research scientist, a birder, or simply curious about a sound that you heard out your kitchen window, we invite you to listen, download, and explore the bird sound recordingsin the collection.
But xeno-canto is more than just a collection of recordings. It is also a collaborative project. We invite you to share your own bird recordings, help identify mystery recordings, or share your expertise in the forums. Welcome!LATEST NEWS
May 1, 2020
Joshua Bergmark adds three species new to XC on one day. No mean feat. Check them out: Dark-eyed White-eye, Ground
Cuckooshrike ,
Black-crowned Babbler.
Your reply
April 22, 2020
A repeat message from April 1st: it turns out there are MANY new users and recordists on xeno-canto in this strangest of times. Please have a look around everyone and try to make yourself at home in our little corner. Hopefully we can make you all feel welcome. If you feel like contributing at some point, with a discussion on the forum maybe or by uploading a sound that would be great. Looking forward to it. Staysafe!
Your reply
April 20, 2020
Besides yesterday's day record of 930 "organically shared" recordings (excluding batch uploads obviously), Frank Holzapfel has written a two-part article. One on bird song in the vicinity of a Goshawk nest , the other on Goshawk calls . Great initiative, Frank.Your reply
April 15, 2020
Stein Ø Nilsen has written a great short article on the appearance of 32 bit recording in two new sound recorders. Looks too good to be true! It's important to differentiate between actual dynamic range of the real world A/D converters used in a recorder, and the teoretically acheivable dynamic range made possible by a specific data type, such as 32 bit floating point data. The actual dynamic range of the presented recorders is indeed impressive, but doesn't get anywhere near the theoretically achievable dynamic range made possible by a specific data type. Presenting the theoretically achievable dynamic range is thus misleading, as it may make the buyer believe that's the actual dynamic range of the recorder, which it is not. To anyone considering buying a new recorder, I'd advice reading up on the concept of _dynamic range_ and what it means. This aside, the recorders seem to be very good ones indeed, just don't get blinded by somewhat misleading presentations of the advantages of floating pointdata.
Ulf Elman on April 27 Dear Ulf, I'm just a Biologist and not too good in physics. But the way it is explained on Sound Devices website is that maximum headroom for a sound is about _210 dB_, and the 32-bit floating file is able to capture that "amount" of sound and maybe most important it is possible to increase or decrease recorded sound in post production/editing. My experience so far is that they are correct, recording blown out is without distortion and with lots of details when pulled down to below 0 dB. I add a few examples where this was the fact pulling it out of the SD-card looking horrible but end-result is really nice. I'm sorry for not being familiar the Zoom F6-files but guess they will be the same. Yours Stein XC547925 XC541762 XC531961 From Sound Devices website: The dynamic range that can be represented by a 32-bit (floating point) file is 1528 dB. Since the greatest difference in sound pressure on Earth can be about 210 dB, from anechoic chamber to massive shockwave, 1528 dB is far beyond what will ever be required to represent acoustical sound amplitude in acomputer file.
There is one other aspect of 32-bit float files which is not immediately obvious. Files recorded with 32-bit float record sound where 0 dBFS of the 32-bit file lines up with 0 dBFS of the 24- or 16-bit file. Keep in mind that unlike the 24- or 16-bit files, the 32-bit file goes up to +770 dBFS. So compared to a 24-bit WAV file, the 32-bit float WAV file has 770 dB more headroom. Stein Ø. Nilsen on April 29 2 replies :: Your replyOlder news...
LATEST ADDITIONS
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XC553254 : Water Rail by Joost van Bruggen from Netherlands*
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XC553253 : Identity unknown by Joan Balfagonfrom Spain
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XC553252 : Water Rail by Joost van Bruggen from Netherlands*
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XC553251 : Little Owl by Joost van Bruggen from Netherlands*
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XC553250 : Eurasian Bittern by Joost van Bruggen from Netherlands*
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XC553249 : Spotted Crake by Joost van Bruggen from Netherlands*
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XC553248 : Spotted Crake by Joost van Bruggen from Netherlands*
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XC553247 : Common Nightingale by Marcel Gil Velascofrom Spain
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XC553246 : Tufted Duck by Joost van Bruggen from Netherlands*
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XC553245 : Western Bonelli's Warbler by Marcel Gil Velasco from Spain * More...Great work!
LATEST MYSTERIES
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XC553253 by Joan Balfagon fromSpain
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XC553241 by Natascha Saule fromGermany
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XC553239 by Scott Connop fromKenya
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XC553167 by Martin Grienenbergerfrom France
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XC553162 by Frank Pierik fromNetherlands
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XC553160 by Frank Pierik fromNetherlands
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XC553158 by Frank Pierik fromNetherlands
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XC553150 by Frank Pierik fromNetherlands
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XC553149 by Manceau Lionel fromFrance
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XC553134 by Gareth Blockley from United Kingdom * More...LATEST ARTICLES
* Under the wings of Northern Goshawk (Accipiter gentilis) - Soundscapes by Frank Holzapfel * Bird identification Apps: Q&A with Mario Lasseck by Alvaro Ortiz Troncoso * Under the wings of Northern Goshawk (Accipiter gentilis) - Goshawk calls by Frank Holzapfel * 32-bit float files – a new era in bird recordings?by Stein Ø. Nilsen
* Ask anything about automatic birdsong id apps, with Mario Lasseck by Alvaro Ortiz Troncoso* More...
COLLECTION STATISTICS982120
IDs
535438
Recordings
10202
Species
11528
Subspecies
6282
Recordists
8625:41:55
Recording Time
455807
Records to GBIF
More...
LATEST NEW SPECIES
* Dark-eyed White-eye * Ground Cuckooshrike * Black-crowned Babbler * Black-backed Barbet * Elliot's Woodpecker* More...
TRY THIS!
USING AUDACITY
Audacity is a freely available software package that lets you analyse and visualise XC recordings. XC recordist Volker Arnold wrote : amanual
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Stein Ø. Nilsen wrote another article on filters in Audacity. Veryuseful!
RANDOM RECORDING
XC19051
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Great Barbet (Psilopogon virens) · songDavid Edwards
Doi Chiang Dao, Thailand ID incorrect? Tell us! LATEST NEW RECORDISTS* Natascha Saule
* Mandar Purohit
* Nick Edwards
* ashishgb
* Roger
* Dr. Annie
* Eduardo Realinho
* Gerard Beekman
* Ryan Pingel
* paleraven
* Welcome!
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Website © 2005-2020 XENO-CANTO FOUNDATION Recordings © the recordist. See recording details for licenseinformation.
Sonogram images © XENO-CANTO FOUNDATION. Sonogram images share the same license terms as the recording they depict.Terms of use
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