Red-tailed Black Cockatoo

["Jo Wieneke" <>]

A male Red-tailed Black visiting the garden yesterday looked as if it went
in for some kind of odd 'body piercing'.  On one side of its face it had a
pale, almost completely circular 'horn'. This seemed to start from near the
base of the lower mandible and curve  down then round and up to below the
eye, then round and down in an anti-clockwise direction. and It was feeding
in a terminalia and both mandibles seemed normal.
Has anyone seen this abnormality on a cockatoo before?

Jo Wieneke
Townsville
North Queensland


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