My chickens are about 4 3/4 months old or so. As of right now, they have a bit of a comb and waddles developed, but they still seem smallish and don't look much older than they did when I got them at 10 weeks. I live in Jacksonville, FL - so it isn't dramatically cold here or anything. I'm worried that they are not getting the proper nutrition - as they don't seem to be maturing very much. Is this a normal thing? When can I expect them to be old enough to lay? My girls eat Purina Flock Raiser formula and there are only 2 of them - they have a decent sized run attached to a good size coop. One hen is a barred rock and the other is a brown leghorn. Does this seem normal? Sorry if these concerns sound silly - first time hen mama!