I have a small flock of 5 RIRs and two of them seem to be skinny. I can feel their breastbone more than the other 3. The other 3 seem to be on the chubbier side. Its not like they dont eat, I feed them and I see them eat but the other 3 seem more ravinous. I'm thinking maybe pull the two skinny girls aside and feed them seperatly?