I wasn't expecting that!

Go out to yard duty and from the corner of my eye I see large black birds swooping down, but that is not the noise of crows...it's cockies...
Puzzled I look again and see at least 3 yellow tailed black cockatoos!
But wait, more squawking and another 3 join them. They nibble briefly on some seed pods, then head off again.
I was clicking and hoping to catch some pics of these majestic creatures, not often seen in the wild, let alone in the bayside suburb of Beaumaris.