Rory Poulter - Atlas Project <>
Thu, 03 May 2001 16:50:40 +1000
Hello Mike and others
The current Atlas is showing a greater than 50% reduction in reporting in
all states of the White-throated Needletail since the first Atlas of 1977 -
1981. This is a large decline.
The NSW Bird Atlas data also shows a decline of a similar amount through
the 1990's. Curiously the decline appears to have begun about 1991 after
being reasonably high in the Eighty's.
The Forked-tailed Swift is showing about a 40% reduction in reporting
between the Atlases which is a moderate decline. The NSW Bird Atlas has too
little data to make sense of.
Birds Australia Atlas Project
415 Riversdale Road
Hawthorn East, Victoria, Australia 3123
Ph (03) 9882 2622
Fax (03) 9882 2677
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