I've got 50 near month old red stars and the 'free exotic' chick is an EE. Yesterday I noticed the EE chick was deliberately attacking the others, singling one at a time out and launching a brutal attack. Several times I saw it go for eyes or the head. The other chicks appear to be confused at this aggressive behavior. So am I. I watched it for awhile and saw this was a routine. Not a once off thing. I removed it and put it in a crate where I have a 2.5 month old araucana pullet. She being much bigger more than likely would not be a target. And this is the case, the chick just sat on its butt ignoring her. I left it with her over night and all are fine this morning even though it has no heat lamp with the pullet. I am assuming this EE chick is going to be a cockerel but I can't say I have ever seen chicks, even cockerels, show such aggression at an early age like this. I am wondering if I should cull it?