Hey Peeps. I have to leave my computer, but wanted to ask about this. I have 27 chicks in a barn area of 4x12. They are going on 4 weeks old. They have an outdoor access hole with a run of 6x6. I am starting to see picking on the vent area and tail feathers of my 4 Cornish Rock Cross chicks. The others that I have are all mixed EE's. My light is probably too hot, but it is 38 in the mornings and 80 in the afternoons! Hard to regulate the temp. Their feed should give them plenty of protein. Do you think crowding is an issue? I appreciate any ideas..