I have one in with my mine she is black with the white crest somebody bothers her top knot but not bad enough to worry about it she holds her own 8weeks old right now. I worried about her at first she was a freebie and the weakest chick they never bothered her and I think it's her feathers coming in that attracted the top knot trouble. I raised polish before they lay nice white eggs and mine were never broody very entertaining chickens the kids loved them.