i brought 5 hens apprently at 6 weeks old 4 weeks ago but since then 4 have developed bright red crests and keep fighting and are a lot bigger them the 5th chick they chest bump chase each other and fight a scratch each other not all the time tho is there a chance i have 4 roos and a hen they are auracana and marans is there a way to easliy sex these little beastys i spend lots of time with them but they still wont come close to me there buggers to catch in the evening to put away