Eastern Whipbird Antiphonal Song

[Syd Curtis <>]

In his email message of 22 May 2003, Dean Portelli wrote:

 
> (all birds were colour-banded and sexed by measurements)

Can you elaborate on that, please Dean.

If the sexing was on the basis of one of a pair being smaller than the
other, we are still left with the dilemma of which is which.  Is there a
sound basis for such determination, confirmed by laparoscopy, or by
dissection of each of known pairs where both were taken as specimens.

Syd

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