The picture shows a sonogram of a bird call recorded in Wolverhampton on the 8th April at 23:13. The Chirpity app suggests it’s made by a Common Scoter.

A map of England by rare bird alerts showing nocturnal migration records of Common Scoters between 1st and 4th April - year not shown.

Anyone familiar with bird call sonograms? This is a night recording from our Song Micro 2, a Common Scoter according to Chirpity. I’ve looked at examples on Xenocanto and to my eyes it looks good and the quiet recording also sounds similar. I’m in Wolverhampton. Thoughts?
#nocmig #chirpity

Flock (unknown nos) Blackwit over shiremoor N Tyneside @ 21:00 #Nocmig # NEbirding

Relatively quiet at Oakdale #nocmig station last night other then this nice Common Sand call at 1:39am & a couple of Willow Warbler calls at 5:20am. @harbourbirds.bsky.social @dorsetbirdclub.bsky.social

#vc55birds #birding #nocmig #ukbirds
Garden tick gold. Stone Curlew, Croft Leicestershire on 6th April 04.36 #lros

Avocet (?) over Elvington early hours this morning #nocmig

Oooh! Just arrived! Brilliant *new* edition of the best introduction & handbook on bird sounds. Thanks, Mark, Magnus & Arnoud!

#bioacoustics #ornithology #nocmig @scottishbirding.bsky.social @fatpaulscholes.bsky.social #birdingscotland

Here's a more typical recording of a flock going high over last night #nocmig

Happy to say the recording of the recent webinar by Wildlife Acoustics, Inc. "Dispatches from the Dark" is now available at: www.wildlifeacoustics.com/.../train...... Thanks so much for the opportunity to talk about "the invisible miracle happening over our heads at night" #nocmig #birds #beijing

Three small groups of Common Scoter east over Hadfield @derbyshirebirds.bsky.social UKBirding #nocmig

Presume this is a Long eared Owl calling? Recorded last night @ 02:30. @sound-birder.bsky.social @kentishplover.bsky.social #nocmig

Any ideas on this call over Bishopstone last night? @sound-birder.bsky.social @kentishplover.bsky.social #nocmig

Big movement of Whoopers overnight and this morning through the Doncaster area. Pity I'm stuck indoors, but recorded some over the house last night. Got a boy racer at the same time - typical! The joys of #nocmig 🙄

Our team launched a Motus Audio flight call recorder at Long Point Bird Observatory. Natalie & Madison added a recorder to the Old Cut Motus Tower, with help from Nelsy Sarah & Jeff, and in collaboration w/ Birds Canada. 🎤🎶🐦👍
#nocmig #bioacosutics @birdscanada.bsky.social @ibiouwindsor.bsky.social

My first #nocmig setup here on a busy Manchester street. It’s a song meter micro 2 with with smallrig clamp on 3rd floor balcony. The one probable is the noise from the street below: if anyone has any tips to try and drown out the anthropogenic noise, I’m all ears!

#birds 🪶 #birdwatching #birdphotography #birding #BirdingIsForEverybody #LetsGoBirding #LowCarbonBirding #nocmig #vismig #ornithology #birb #birbs #borb #borbs #ausbird #australianbirds #ausbirds #australianwildlife #auswildlife #canberra #mulligansflat #welcomeswallow #canonr7

I remember a talk by Andrew Grieve about Blacktoft Sands when he talked about the discovery of 100's of Common Scoters flying up the Humber heading inland. Since taking up #nocmig I still find it amazing when I get recordings of scoters over Doncaster in the dead of night

Need some help with #nocmig please. Chirpty picks up barn owl calling. Last night it picked it up over 5k times!! There is a constant white noise hiss throughout the entire session which is visible on the graph a set of pale lines. I assume it low frequency noise as I can't hear it when outside..

#nocmig common scoter migration picking up pace over Elvington, 11 flocks recorded between 10pm and 2am last night.

Matthew Kirkland Dispatches From The Dark Webinar March 5 2026

Thanks to @wildlifeacoustics.com for hosting Chirpity's Matt Kirkland in a recent webinar. Here's a link to Matt's talk about all things Chirpity #chirpity #nocmig #birds #bioacoustics #migration #wildlife #biodiversity
vimeo.com/1171023774?f...

#patch Monday night #nocmig 3 groups of Wigeon 22 Redwing and a few bits and bobs passing over through the night

ML652572721 - Mandarin Duck - Macaulay Library Macaulay Library ML652572721; © Tom Lowe; Shropshire, England, United Kingdom

Sunday night was a busy one for #nocmig at #salopobs with the expected territorial Little Grebe, Coots and Moorhens, Barn and Tawny Owls, then a Bittern at 2300 and finally this yappy Mandarin at 0539
macaulaylibrary.org/asset/652572...

Big movement of Redwing on Oakdale #nocmig last night. 327 calls 20:30-22:15 as well as 16 Blackbird & 1 S.Thrush. Only 22 Redwing logged after that to 05:00. Also, Curlew & Brent picked up. @harbourbirds.bsky.social @dorsetbirdclub.bsky.social

#patch #birds #nocmig recorder out last night in search of migrating Scoter had some ladt year along with Whoopers

A spectrogram showing a downwards whistle, labelled Redwing.

A spectrogram showing three high pitched downward whistles, labelled Eurasian Siskin.

A spectrogram showing a sequence of high-pitched calls that go up in frequency, then drop sharply downwards, labelled Hawfinch call.

A spectrogram showing a faint broadband call, labelled Grey Heron.

After attending a great webinar hosted by @wildlifeacoustics.com last week, we’ve trialled #nocmig using Chirpity. Fascinating results, with plenty of birds passing over, and being identified by their flight calls, including Siskins, Redwings and Hawfinches heading north @chirpity-nocmig.bsky.social

A few inland common scoters today, might be a good idea to do some #nocmig tonight.

Jeff Dutter is a bioacoustics intern, joining our lab as part of the Master's of Bioacoustics (MoBi) program at U. Saint-Etienne. Today we had phase 2 of testing our Motus Audio microphone horns in our campus studio. Great work Jeff! #NocMig @ibiouwindsor.bsky.social @nicolasmathevon.bsky.social

I use a Tashcam DR-05X with a Neewer NW-81 Super Uni Directional Electrec Condenser Microphone for #nocmig I'm getting interference on the recordings. Is it because I'm using a cheap microphone @simongillings.bsky.social

XC1085169 Common Moorhen (Gallinula chloropus)

03/03/26 1959hrs Moorhen #Mulbarton #nocmig xeno-canto.org/1085169

We're testing out our latest prototypes of Motus Audio recorders in a campus recording studio. Led by visiting research student Jeff Dutter, with support from Natalie, Nelsy, and Madison. What effects do different plastic wraps have on our #nocmig recordings? Stay tuned to find out.

XC1085145 Water Rail (Rallus aquaticus)

03/03/26 21:29 Water Rail flight call #nocmig xeno-canto.org/1085145