birding-aus
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To: | "" <>, "" <> |
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Subject: | Bird noise |
From: | Peter Shute <> |
Date: | Tue, 10 Mar 2015 12:16:59 +1100 |
A loud call means flocks can disperse further to feed, and still regroup easily. It also means they can broadcast a food location and signal danger from further, and can advertise ownership of a bigger territory. All the things other birds do with their calls, but bigger. Just guessing. Peter Shute > -----Original Message----- > From: Birding-Aus > On Behalf Of > > Sent: Tuesday, 10 March 2015 10:10 AM > To: > Subject: [Birding-Aus] Bird noise > > Is there any evolutionary advantage in making a loud noise? > I have often wondered why parrots make such a racket when > they fly. It seems to me to be a very silly thing to do as > it would attract the attention of every raptor for miles around. <HR> <BR> Birding-Aus mailing list <BR> <BR> To change settings or unsubscribe visit: <BR> http://birding-aus.org/mailman/listinfo/birding-aus_birding-aus.org </HR> |
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