Hi John,
yeah non-vocal sounds are definitely of interest to compare. I agree, Ruffe=
d Grouse is an incredibly low freq call from a relatively small bird (compa=
red with the size of a bittern or a cassowary anyway!).
I have posted a recording of Ruffed Grouse here: https://soundcloud.com/wil=
dambience/ruffed-grouse-bonasa-umbellus
Also the world's largest parrot, the Kakapo from New Zealand has amazing ca=
ll - https://soundcloud.com/wildambience/k-k-p-strigops-habroptilus
Others that come to mind are:
Emu drumming - https://soundcloud.com/wildambience/emu-dromaius-novaehollan=
diae
Duet of the Blakiston's Fish Owl: https://soundcloud.com/wildambience/blaki=
stons-fish-owl
and the Eurasian Bittern was mentioned by Tony Whitehead - https://soundclo=
ud.com/wildambience/eurasian-bittern
If you can think of any others I'd be interested to know.
Regards
Marc
http://wildambience.com
--- In "rock_scallop" <> w=
rote:
>
> Hi Marc,
> That is a fascinating call. By lowest "sound" do you mean vocal calls st=
rictly? If this is open to mechanical calls as well, one of my favorite lo=
w frequency bird calls is the 60 Hz drum call of the Roughed Grouse.
> Lang Eliot has a nice example of the roughed grouse here:
> http://musicofnature.com/ruffed-grouse-drumming/
>
> John Hartog
> rockscallop.org
>
>
> --- In "wildambience" <marc@> wrote:
> >
> > The Southern Cassowary's call is apparently the lowest frequency known =
sound from any bird (if you can think of another contender I'd be intereste=
d to hear about it).
> >
> > I recorded this sample from a captive bird in a wildlife park near Sydn=
ey, Australia - all I had on hand was my Canon DSLR and this is the resulti=
ng audio file, not great but I was happy that the miniature mic even picked=
it up. Would love to record it again with some decent gear if I get the ch=
ance!
> >
> > https://soundcloud.com/wildambience/southern-cassowary-casuarius
> >
> > Hearing the call close up is incredible - sounds more like an large mam=
mal than a bird!
> >
> > Marc Anderson
> > http://wildambience.com
> >
>
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