moved 11 10 day old broiler bb's to "broiler pen" this a.m. and have noticed last couple of days they have symetrical kind of balding areas on them. it is very slight and like I said uniformly on all of them and they are fat,eating,drinking chirping fine so I am assuming its because of their color. can't post pics to byc. have tried and tried. I feel it is probably normal but am curious.