My chicks are around 4 weeks old (I think) and all are growing their combs nicely except for this Maran (I think that's what she is). This is my first flock and I don't know if I should be concerned with her comb or not. It's kind of crusty on top but no sign of a comb. What do you think? Also, I've read on here that you shouldn't feel the chicks breast bone because that means they are too skinny. All of my babies must be starving! They always have their medicated chick food mixed with chick grit in their kennel and I feed them meal worms and blackberries almost daily. They get to spend time in the backyard a few hours an evening. I don't see visible worms in their poo. Should I feed them something to fatten them up? The black and white one is the one with the comb problem. Her name is Lily. Thanks for all your help!