Biting a crow's nose

I don't understand.

First of all, I'm told I have to barrack for the Crows. What a barrack? And what's a crow? This white thing is a teddy bear - so why call it a crow? It's beyond a small pup's brain.

So I thought I'd bite its nose.

(Note from the editor: The Crows are an Adelaide Australian Rules football team)