How do you tell if a chicken is skinny? I have a flock of egg layers. Two Domineques, two Red Sex Links, and two Orohingtons.(sp?) They're not "meaty" and I can feel thier brest bone. They have free access to feed, a mix of laying crumble and meat bird mix, corn and oats in the morning and what ever left overs I have. I am trying to give them high calories as we are having a COLD winter.