So I got 4 chicks from the feed store and 1 is a buff orpington. It seems a bit slower with growing its feathers compared to the other 2 that I thought were around the same age.. I was thinking they were around the same age but now I'm not sure It has been almost 3 weeks since I got it from the feed store in these pictures. Is it just slower than the others in developing its feathers? The others already have their tail feathers growing in and partially on their backs now. Sorry you can probably tell I am new to owning chickens..