Hi Peter,
They are (or It is) alarmed by something, a predator or even your micropho=
ne if it was visible. And in your recording there could be one bird that is=
making this noise.
I observed and recorded one giving alarm call when it was doing that it lo=
oked up in the air, so I presumed there was a raptor in the air invisible t=
o me. I was standing right in front of them that did not bother them. This=
was confirmed by a researcher here in Cornell that it was indeed an alarm =
call.
Cheers
Meena
Meena Haribal
Ithaca NY 14850
Message: 42.
Subject: 429007,-76.47111
http://www.haribal.org/
http://meenaharibal.blogspot.com/
Ithaca area moths: https://plus.google.com/118047473426099383469/posts
Dragonfly book sample pages: http://www.haribal.org/dragonflies/samplebook.=
pdf
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Sent: Thursday, July 2, 2015 4:11 AM
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Subject: [Nature Recordists] Digest Number 6418
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