[Top] [All Lists]

Re: Songbird audiograms

Subject: Re: Songbird audiograms
From: Harald Yurk <>
Date: Mon, 31 Mar 2008 10:16:04 -0700
Hi Everyone,

If what Martin says is correct, it would mean that producing higher
frequencies in a bird that is deaf for those frequencies would not require
increased energy intake, i.e., food. Otherwise natural selection could have
favoured those individuals who did not produce those higher frequencies,
regardless of whether males hear them or not. Unless of course females are
able to hear these frequencies and can use them as a proxy for prowess in
males with regard to territory acquisition and maintenance. Are there any
studies on the ability of female birds to hear higher frequencies in the
respective species?


on 3/28/08 6:37 AM, Martin Braun at  wrote:

> Michael Stocker wrote:
> "We could infer that they do use these sounds for something which
> involves their being able to hear them ...."
> This may not always be true. Imagine the following scenario:
> A bird is deaf above 6 kHz. If this bird has sound components
> around 10-12 kHz in its calls, it cannot hear these components and it is
> thus unable to influence its voice organs to reduce or even eliminate
> them.
> Martin
> ---------------------------------------------------------------------
> Martin Braun
> Neuroscience of Music
> S-671 95 Klässbol
> Sweden
> web site:

<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 Bioacoustics-L 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