Thanks Paul.
Makes sense. (Occam's razor well-applied?)
Syd
> From: "Paul and Irene Osborn" <>
> Date: Thu, 20 Mar 2003 12:58:26 -0600
> To: <>
> Subject: Re: [BIRDING-AUS] Honeyeater alarm calls
>
> Hi Alastair, Andy and all,
>
(snip)
I gained the
> impression that the Miners were using a different alarm call for different
> raptors and other large birds but later changed my mind. I didn't do an
> exhaustive study (I was supposed to be working, after all) but in the end
> decided that the alarm call depended on the closeness and immediacy of the
> perceived threat. Goshawks, Sparrowhawks and Falcons often came through fast
> and low which elicited a strident response, whilst Whistling Kites,
> Sea-Eagles and Wedgies tended to drift past at a greater altitude and so got
> a milder response. This would be much like you or I looking over a cliff and
> seeing a snake on the ground fifty feet below. I would say "Oh, look,
> there's a snake" whereas the response if out bushwalking and one of the kids
> was about to step on a Tiger Snake would be somewhat less restrained. Just
> my opinion.
> Paul Osborn
>
Birding-Aus is on the Web at
www.shc.melb.catholic.edu.au/home/birding/index.html
To unsubscribe from this mailing list, send the message
"unsubscribe birding-aus" (no quotes, no Subject line)
to
|