John,
It is early but not "excessively early" is well
within the start of the peak of dy observations for the Galah. As shown in the
graph of "Breeding chronology for commonly breeding species" in my 21 year GBS
Report or the text as follows see the in bold bit:
Galah Cacatua roseicapilla
This is now one of our most familiar birds. It occurs in small to very large
flocks in all open habitats and suburbs. It will readily feed from seed provided
by people. From a low in September and October numbers increase steadily to a
high in June then decline steadily again. The annual amplitude was especially
high in the first two years and has now evened off a lot. Records from early in
Canberra?s history show this species as a rare and celebrated visitor to the
region. In Year 17 it reached number one spot, retaining it in Years 18 to 20.
Numbers over the years had been mostly stable, with an increase over the last
six years. Always among the most widespread of species. Breeding records have
increased over the first few years then fluctuated around a high level. First
few observations of inspecting hollows, nest building or copulation in late July
but mostly through August and September, activities at nest have finished by end
of November. First dependent young from mid October, though the
great majority of breeding records are of dependent young through summer and
very few further records after mid March. Graphs on page: 94, Rank: 2,
Breeding Rank: 8, Breeding graph on page: 106, A = 6.49478,
F = 99.38%, W = 52.0, R = 77.968%,
G = 8.33.
Some other subscribers have by-lines to
their name block. Maybe I should use this one "GBS Report: most questions
already answered"
Philip
|
Admin
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 Canberra Ornithologists Group 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 list contact David McDonald, list manager, phone (02) 6231 8904 or email
.
If you can not contact David McDonald e-mail
Andrew Taylor at this address:
andrewt@cse.unsw.EDU.AU
|