My 3 week chicks are already perching on top of the waterer and a makeshift perch I made of sticks and they are flying around inside the brooder (which is located inside the coop.) One has already flown out of the brooder and freaked out cause she was all alone. I am concerned they will start doing this when I'm not around to help them, as sometimes I don't check on them for quite a few hours. Are they too young for me to just get the rest of the coop ready for them and let them out of brooder now? ....the coop is about 8x8 in size. The coop also has tall ramps that lead up to the nesting boxes and large perches. Is it safe enough for them yet?