Okay, another couple of newbie questions. Probably stupid ones, but ?? Most of our now almost 3-week old chicks are getting feathers and losing their baby downy look. But our two black Astrolorps look really really scrawny. When they stretch our their necks it looks like there are bare patches. Is that normal? Everyone does seem to preen themselves a lot, pulling out the downy stuff and preening the new feathers. Should I be watching for mites or something? Is this normal? Also ... our two little RIR are sooo much smaller than the rest of the group -- 2 austrolorps, 2 ameraucanas, 2 buff orpingtons. Do some breeds just develop more slowly? These two spend far far more time sleeping near the heat lamp than do the others. I've watched them and they're eating and not getting trampled, but they're sure getting behind the rest of the bunch.