My 34 3 month old birds all seem to have a fairly prominent breast bone. I wouldnt say they are emaciated, I can feel meat on them, but it is a far cry from what I would consider a full breast. Is this normal for growing birds, or am I not feeding enough. I feed once a day, in the morning. They get both their trays filled (think two and a half coffee cans worth) with grower then are let out to free range and I give them one scoop of my scratch mix (peanuts, boss, cracked corn, buckwheat, oat middlings). By the next morning their trays are bare and the area around the trays are picked clean, so I fill them again. I do this on purpose so they dont waste their feed and clean up after themselves. Should I feed more? They free range 4-5 hours a day, often times more. I'm getting a little worried as it is already frosting here in central Wisconsin and my babies are molting. I would feel better if they had more meat on them to keep them warm.