Fw: [Birdng-Aus] playback

To: "Baus" <>
Subject: Fw: [Birdng-Aus] playback
From: "Graham Turner" <>
Date: Wed, 10 Jun 2009 12:11:45 +1000
G'day birders,
I forwarded the original question to a friend who works in wildlife research who often uses call playback for surveys etc.

" Has anyone out there have any actual evidence that tape playback in moderation is actually harmful to birds? "

This is a more polite version of his answer.

Graham Turner

"A better question is does he have any evidence that it doesn't.

I think I told you before that territorial response in some species,
even natural response can be sufficient to cause nesting to fail. This
has been seen in Boobooks by Olsen and Trost.

The long and the short of it is that 'Twitcher' is not going to
stick around after getting his TICK to see what the effect was. Unless
he is going to stick around and conduct some psychopathology on him.
What does he achieve with playback.
If he is twitching, probably just a TICK.
If he is surveying for a reason he may get useful distribution
If he is studying behaviour or ecology he will probably have just
screwed up a period of his study.
With playback he may have just screwed up someone else's study.
He may have just disrupted a critical phase of breeding.
He may have just damaged someone else's chance of getting a TICK."


To unsubscribe from this mailing list, send the message: unsubscribe (in the body of the message, with no Subject line)

<Prev in Thread] Current Thread [Next in Thread>

The University of NSW School of Computer and Engineering takes no responsibility for the contents of this archive. It is purely a compilation of material sent by many people to the birding-aus mailing list. It has not been checked for accuracy nor its content verified in any way. If you wish to get material removed from the archive or have other queries about the archive e-mail Andrew Taylor at this address: andrewt@cse.unsw.EDU.AU