OverClockers Twitchers' Thread

Greenfinch are quite rare now sadly due to a disease.
They are one of my favourite all time birds and haven't seen any in garden for 2 years.

You've got one from this year's hatch there.
There’s a specific type of tree they usually congregate in on one of my woodland walking routes but I haven’t seen them for a couple of years now. Seems their numbers have crashed :(
 
I just mentioned this to the missus, now she wants one setting up. I guess I need to start doing some research!

its a fantasticly interestingly tool for the garden

if want any info let me know

ours has recorded 244k specific bird recordings now !!!

I think ours cost around £170 including a decent case, memory card and a decent mic could have gone cheaper with a cheaper mic etc

an alternative would be an Audiomoth - but they are simply a recorder which you put out for a period of time bring in and then analyse on PC - you can't interrogate "live" - the battery life is good though I think I've read up to 2 weeks

note with the Pi4B even underclocked I get about 12 hours time with a 10,000mAH battery, and 24 hours with a 20,000mAH, I swap between the 2 as the other is charging

ref Greenfinch - it has recorded 946 recordings of Greenfinch so far :) slight trend/peak between 6am and 8am
 
so far today the BirdNET Pi has performed 753 recordings (quiet morning actually) - with the following species

Barn Swallow
Carrion Crow
Common House-Martin (have them nesting on the front of the house)
Common Wood-Pigeon
Dunnock
Eurasian Blue Tit
Eurasian Collared-Dove
Eurasian Jackdaw
Eurasian Magpie
Eurasian Woodcock (this is the only one most likely in error - haven't checked yet)
Eurasian Wren
European Goldfinch
European Greenfinch
European Robin
Great Tit
Long-tailed Tit
Ring-necked Pheasant (garden is next to a field)
Rook
White Wagtail

not sure what has happened to the Swifts this year, they nest at a Church about 1/2 a mile from here, but I haven't seen them in a while and last recording on the BirdNET was from July 21st

seems too early to have left ? <EDIT> reading online - especially in the South apparently they leave for Europe as soon as they have bred - so probably have left
 
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This guy came back
 
noticeable up-tick in waders flying overnight over the last week - during that period wader wise BirdNET PI has detected:

Grey Plover
Redshank
Spotted Redshank
Little Ringed Plover
Ringed Plover
Common Sandpiper
 
so far today the BirdNET Pi has performed 753 recordings (quiet morning actually) - with the following species

Barn Swallow
Carrion Crow
Common House-Martin (have them nesting on the front of the house)
Common Wood-Pigeon
Dunnock
Eurasian Blue Tit
Eurasian Collared-Dove
Eurasian Jackdaw
Eurasian Magpie
Eurasian Woodcock (this is the only one most likely in error - haven't checked yet)
Eurasian Wren
European Goldfinch
European Greenfinch
European Robin
Great Tit
Long-tailed Tit
Ring-necked Pheasant (garden is next to a field)
Rook
White Wagtail

not sure what has happened to the Swifts this year, they nest at a Church about 1/2 a mile from here, but I haven't seen them in a while and last recording on the BirdNET was from July 21st

seems too early to have left ? <EDIT> reading online - especially in the South apparently they leave for Europe as soon as they have bred - so probably have left
Thats cool as hell! I have a few Pi's kicing about, im gonna do this over the weekend!

Where do you keep the pi or mic?

Did you buy a special mic of just a normal wee generic one will do?

Thanks!
 
I put the Pi 4b into a aluminium case then into a cheap waterproof box


but before I bought the waterproof box I used the box my 3060Ti came in - would withstand light rain if was caught out by the weather forecast.

Mic wise - I did go for a specifically sensitive one - a Clippy EM272


although before I bought that I was using my USB Calibration mic from my home cinema (UMIK-1) with excellent results.

There are much cheaper options than the Clippy I bought

the UMIK as a USB mic - plugged straight into the Pi but for the Clippy it needed a Audio interface/DAC - I tried a few and the gain wasn't enough. The best I've used so far is the Apple USB-C dongle (with a USB-C to A adapter) - there is noise on it (odd wavey lines) compared to some other cheap audio interfaces I used but the gain is very good and it was very cheap, the extra gain is much more useful than the additional noise I seem to get

I power the lot with 2 Anker batteries which I switch between, one a 10,000mAH which lasts about 12 hours, and a 20,000mAH one which lasts about 24 hours

I set for the very best archived results the software to record all bird recordings as FLAC, and I reckon a 256gb card will do about a whole year

much smaller file sizes if MP3s but I noticed some quality degradation
 
this was a surprise when I got in the other day and checked what it had picked up - Peregrine Falcon - nice clear recording too


so far Raptors/Owls wise it has picked up and recorded:

Raptors - Buzzard, Red Kite, Marsh Harrier, Sparrowhawk, Kestrel, Peregrine, Merlin (possible)
Owls - Barn Owl, Tawny Owl, Little Owl

detected birds for today - I've removed 5 or so that I thought were very unlikely (I didn't even review those recordings). Live between 2 Estuaries so get quite a few things overflying

Barn Swallow
Eurasian Green Woodpecker
Lesser Whitethroat
Eurasian Jackdaw
Long-tailed Tit
Common Buzzard
Eurasian Jay
Common Chaffinch
Eurasian Magpie
Redwing
Common Firecrest
Ring-necked Pheasant
Common House-Martin
Eurasian Wigeon
Eurasian Wren
Rook
Common Ringed Plover
European Goldfinch
Common Swift
European Greenfinch
Song Thrush
Common Wood-Pigeon
European Robin
Spotted Redshank
Dunnock
Goldcrest
Tawny Owl
Eurasian Blackcap
White Wagtail
Eurasian Blue Tit
Great Spotted Woodpecker
Eurasian Collared-Dove
Great Tit
Eurasian Curlew
House Sparrow
 
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I put the Pi 4b into a aluminium case then into a cheap waterproof box


but before I bought the waterproof box I used the box my 3060Ti came in - would withstand light rain if was caught out by the weather forecast.

Mic wise - I did go for a specifically sensitive one - a Clippy EM272


although before I bought that I was using my USB Calibration mic from my home cinema (UMIK-1) with excellent results.

There are much cheaper options than the Clippy I bought

the UMIK as a USB mic - plugged straight into the Pi but for the Clippy it needed a Audio interface/DAC - I tried a few and the gain wasn't enough. The best I've used so far is the Apple USB-C dongle (with a USB-C to A adapter) - there is noise on it (odd wavey lines) compared to some other cheap audio interfaces I used but the gain is very good and it was very cheap, the extra gain is much more useful than the additional noise I seem to get

I power the lot with 2 Anker batteries which I switch between, one a 10,000mAH which lasts about 12 hours, and a 20,000mAH one which lasts about 24 hours

I set for the very best archived results the software to record all bird recordings as FLAC, and I reckon a 256gb card will do about a whole year

much smaller file sizes if MP3s but I noticed some quality degradation
Thanks so much for this, I've got it semi set up now.

Using an older 3 B+ and my Halfords car jump starter pack... seem to get about 3 hours from it.

No mic bought yet, so just tried it with a USB one I had kicking about, kinda from retro computer days!

Shed is up back near the bushes and trees, so I had the Pi and battery pack in the shed then just poked the mic out the door.

Its defo not sensitive enough, all ive caught so far is a Robin 3 times over 2 days. I have a wee bold one, so I'm assuming hes the only bird getting close enough to the mic!

Thanks again and watch this space :)
 
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