Sure a raptor can cause a
cacatuidae stampede
but they do it anyway without that. I have flocks of these two species of similar magnitude around my home almost daily (or about 50 ScC). Based largely around the hundreds
of Corellas around Tuggeranong.
Philip
From: John Layton [
Sent: Sunday, 14 June, 2020 12:49 PM
To: Canberra birds
Subject: [canberrabirds] Little Corellas in Holt
At 10:30 this morning a large (about 100) raucous flock of Sulphur-crested Cockatoos swooped low over the Holt Paying Fields followed by some 30 Little Corellas also very
vocal. In my experience it’s unusual to see more than two or three of the latter in the local area. I suspect a raptor caused the cacatuidae stampede but, despite scanning the sky, I didn’t see one.
John Layton
Holt.