William hypnotizes "Aunt Rita"
I am guessing that of the three Black Australorp chicks we have, two are female and one is a rooster, which would be perfect. We are basing this on behavior so far and tail feathers. When alarmed, only one chick sticks his head straight up as if to look and be ready to fight. The two hens hunker down. Tail feathers support this gender division. Here is the tail of one of the hens:
And here is the suspected rooster's tail: