Heres the situation... I have 20 chicks, 6 are 16 days old, the rest are all 10 days old... as of today Friday. I have no other chickens, and it was suggested that maybe I could move them to the coop already, with the heat lamp... since there are no big chickens in there... The brooder I have they are quickly out growing. The coop is finally done, and I can put the heat lamp out there for them... we are in Maine so nights still get chilly. Do you think this will be okay? or should I build a bigger brooder? If I shouldn't move them to the coop yet, at what age should I do that? Also, if its okay to move them at this time (with the heat lamp), then what time of day is best to move them?? The coop is completely enclosed, with a window, which I can open for them, (it gets hot in there in the afternoons) and we put chicken wire over the window so they can't get out. and other birds, or animals can't get in. This is all new to me, so any help is appreciated!