Hello all,
I've got a question with regards to Yellow-tailed Black-cockatoos
(YTBC). The work that I'm doing on Masked Owls is of necessity going to
be looking at large tree hollows and the issues associated with
retention of the same.
I've had three different people ask me about YTBC and their nesting
behaviour and success in the last week. It's made me aware that I know
very little about Black-cockatoo nesting behaviour- I've certainly never
found a YTBC nest. Nelson and Morris (1994) had some success describing
their requirements. I was just curious to see whether anyone on
birding-aus had any observations on YTBC breeding. Ever found a nest?
What about juveniles? Are birding-ausers seeing fledged or immature
YTBC? I find cockatoos interesting because they are so long-lived- how
long would it take for a lack of breeding success to become evident?
REFERENCE
Nelson and Morris (1994) Nesting Requirements of the Yellow-tailed
Black-cockatoo, Calyptorhynchus funereus, in Eucalyptus regnans Forest,
and Implications for Forest Management, Wildlife Research, 21: 267-278.
Cheers
Mick
____________
Michael Todd
Wildlifing- Images of Nature- www.wildlifing.com
Ranelagh, Tasmania
Latest Additions: Updated Australian Mammals Gallery
Mobile: o41o 123715
Eric Finley wrote:
Hi Alan
Have watched the annual report records of this species with interest. On
a purely local and personal level though, have definitely seen an
increase in the species' inner city occurrences. For example I lived in
Stanmore-Leichhardt-Petersham for about 6 years to 1998 and during that
time had only a handful of isolated sightings. I now see or hear them in
Redfern and neighbouring suburbs several times a week on average during
winter months, and this has been fairly consistent for the past 3 years.
During my first winter in Redfern, 2003, I did not have a single local
sighting. Certainly a welcome trend in any case - I hope it is not
indicative of a problem for the species elsewhere which is forcing them
in on the big city!
Eric Finley
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