There could be as many as five populations of Roseate Terns that
visit Western Australia.
The best known of course are the large numbers that visit the
Abrolhos Islands and breed in November / December. A few breed
further south (Lancelin Island I believe) and some used to breed at Mandurah.
There has been a very small population known for quite a while which
breeds in Shoalwater Bay near Rockingham, Rottnest Island and
Geraldton in May / June.
Then there are the large numbers that visit the Gacoyne, Pilbara and
Kimberley coasts ........ Noone really knows what is happening here.
The AWSG has been banding Roseate Terns on the Swain Reef in the
outer Great Barrier Reef off Queensland for several years and have
found three populations there. One that breeds, one from Japan, and
the third ........ So something similar could easily be happening in
northern WA.
_________________________________________________________________
Frank O'Connor Birding WA http://birdingwa.iinet.net.au
Phone : (08) 9386 5694 Email :
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