If birds stop responding to playback then that's true. But if they stop
responding to real calls from their own species then it should affect
their ability to maintain territory, breed, etc, shouldn't it. No idea
if that happens.
I think the main thing is to make sure that birds aren't exposed to it
to much, as they can obviously survive the occasional playback. The
problem is knowing how much they've already been exposed to.
Peter Shute
> -----Original Message-----
> From:
> On Behalf Of Tony Russell
> Sent: Tuesday, 16 September 2008 12:26 PM
> To: 'Richard Hoyer';
> Subject: RE: [Birding-Aus] Effects of call playback on birds
> 3) The other observation that some bird species seem to
> habituate to the playback (and thus fail to respond to it) is
> no different to them habituating to any other sound or
> visible intrusion that comes their way, ie, vehicular sound
> and motion. Surely this habituation must save energy rather
> than expend it. It's often only when a vehicle stops rather
> than passing by as usual that birds take fright and fly for
> cover. Again, annoying for the hopeful observer, but hardly
> any more stressful for the birds than if some normal predator
> approaches.
>
> Tony.
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