Thanks to all who responded to my message. The consensus seems to be that
Little Corellas are well established in Canberra. I'm surprised I have not
seen them before.
My husband's sighting was in interesting circumstances. (The Sulfur-crested
Cockatoos in the Brisbane Avenue/Wentworth Avenue area are always
conspicuous but he rarely sees them in large numbers at close quarters.
Sometimes he sees groups loafing in the tall trees of Telopea Park, but
generally they seem to be dispersed throughout the tall trees of the Barton
area.)
On this occasion a very large flock was engaged in some kind of
mass-hysteria or exuberant play, possibly associated with an approaching
weather change. They were massing on the tops of buildings at the eastern
end of Brisbane Ave, shrieking and displaying, wheeling around the window
ledges of the top two or three floors, and moving en masse from buildings to
tree canopies and back again. We have previously seen similar behaviour
associated with approaching storms near Brown Mountain where the large
flocks that roost up on the plateau move down the escarpment to roost, and
sometimes behave in the same restless way well into the night.
The Corellas in the flock were every bit as boisterous as the Cockatoos.
One gave my husband a very good sighting by landing briefly on the ledge
outside his window.
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Bronwyn King
Canberra, Australia
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