After 3 days in isolation, I reintroduced the Australorp pullet. The first hour seemed OK but then she was at it again, trying constantly to rip the Wyandotte apart. She's unrelenting and it's only for that one bird. The Wyandotte tried to stand her ground a little at first, but she's no match for the aggression in the Australorp. There are feathers EVERYWHERE. The Wyandotte is darting around a nervous wreck locked in a coop with Austra dive-bombing her. I put the Australorp back in the dog crate. Had to. Not sure what else to do at this point. Any ideas? I think the Australorp maybe needs to be with standard-sized chickens. The Welsummer is slightly bigger than the others and Austra never bats at eye at her... ?