This is a sulphur crested cockatoo.
This one was being particularly noisy
and bossy. The others were ignoring him.
In the twenties the "Cockatoo" was the name
for the gang member who stood watch to warn of the
arrival of the police.
Cockies can also be the name used for a farmer in Australia.
These birds can live to 100 years old. Our cousin has one that imitates his telephone exactly even to the extent of the correct number of rings before the answering machine takes over. Very realistic.