Geoffrey
I find this reciprocal trend to be very interesting.
My observations of suburban Rufous Whislter have almost always been
in association with mature eucalypts, essentially the woodland
component that you allude to. In contrast, Golden Whistlers seem
happy in a variety of exotic trees and larger shrubs. I suggest that
factor number 3 may well have had an influence.
My sense is that Rufous Whistler numbers are declining even in
suitable habitat. The COG woodland surveys would surely provide
definitive information in this regard.
BTW is there any interest in repeating the Winter Bird exercise this year?
Milburn
--
Dr P.J Milburn
Technology Specialist
Australian Cancer Research Foundation Biomolecular Resource Facility
John Curtin School of Medical Research
Australian National University
GPO Box 334
Canberra ACT 0200
'Phone +61 2 6125 4326
FAX +61 2 6125 9533
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