I have two chicks that are 4 weeks old, a little cockerel and a little pullet. The pullet has a fairly bad crossbeak. Right now while they are living in the brooder she is doing just fine. She prefers to dig the crumbles out of the feeder and eat them off the floor of the brooder. How well is she likely to do once added to the flock in a few weeks? They will of course have their own crate in the coop until they are fully intergrated.