Hi Peter, I know nothing about Australian quails but like David my guess is=
that this is bird sound, probably part of their alarm sequence, I looked a=
t the spctrogram and the two flight sounds are the same frequency (about 3.=
2 KHz)as the landing calls with no evidence of mechanical sounds.
Earlier this year I stumbled across Hazelhens and was astonished at the thi=
n high-ptched calls they made: http://tinyurl.com/3lzqvzo not as robust as=
one might expect from this family.
Chris
http://www.wildechoes.org
--- In Peter Shute <> wrote:
>
> Thanks very much for that. I hadn't thought of listening to it slowed dow=
n, so I'll have to give that a try.
>
> My memory is that there was a very clear vocalisation at or before it too=
k off, and I was surprised that it wasn't obvious on the recording. I'm won=
dering now if this is simply because the ME66 was pointing forwards and the=
bird was almost at my feet, making its recorded volume much lower than I e=
xpected. I'll have to try to remember to point it down more next time I tr=
y this.
>
> What do you mean by "listening to the reverb"? How do you do that? Is it =
obvious at low speed?
>
> Peter Shute
> ________________________________
> From: =
ps.com] On Behalf Of Avocet
> Sent: Monday, 7 November 2011 1:07 PM
> To:
> Subject: Re: [Nature Recordists] What's this sound on this track? Bird or=
equipment fault?
>
>
>
> > I recorded the sound of a quail being flushed, and there's this odd,
> > very brief squeak ...
>
> Peter,
>
> I slowed down the recording 4 and then 16 times and listened on a loop
> play. There is a double vocalisation near the start, and what is
> almost certainly a second double vocalistion as it departed. The
> rhythm of its wingbeats was unbroken and there are no gaps except for
> very brief pauses between the wingbeats so I don't suspect a hiccup in
> the recording. The clincher was listening to the reverb which
> accompanied both vocalisations and remained consistent.
>
> If it was mic or mount noise, I would have expected an LF blip at that
> point, so I reckon it's all bird generated sounds. The wingbeats are
> all "hard" suggesting that they may have been touching or at least
> strongly "feathering" as is normal with take-off flight like a chicken
> or pigeon. This can be quite squeaky sometimes, but not like the
> vocalisations.
>
> David
>
> David Brinicombe
> North Devon, UK
> Cogito cogito ergo cogito sum - Ambrose Bierce
>
>
>
>
>
>
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