Just had a listen and not heard this before, though a quick search brought =
up a binding blog that mentions God's own clay as the sound source.
On Ashe's bird blog it says this is done by either sex and during courtship=
. It is usually only audible for around 50metres from the birds.
http://ashsbirdblog.blogspot.co.uk/2009/02/tawny-owl-xylophone-trill.html
Regards.
Simon.
--- In Klas Strandberg <> wrot=
e:
>
> New file at SoundCloud.
>
> I have been trying to record this "mysterious" call for 30 years.
> Even though you can hear it at some 200 meters away, perhaps more, it
> is the kind of sound that does not get much louder, the closer you come.
> Here, at Telinga, I hear this call 3-4 times / year, lasting about a
> minute each time. So one has to put the mics out and records hours and ho=
urs.
>
> Question: What kind of call is this? A male being excited? Aggression cal=
l?
>
> Klas
>
>
>
>
> Telinga Microphones, Botarbo,
> S-748 96 Tobo, Sweden.
> Phone & fax int + 295 310 01
> email:
> website: www.telinga.com
>
>
>
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