hello! I have finally jumped in two feet first and now I have 11 chickens! 5 of them are old english mille fleur and bontam cohcin mix along (we got from a friend and 1 day old) with 2 ISA browns and 4 Brahma chicks. (we bought from farm and family) the 6 we bought are much larger then the babies and we have them all in a large storage bin at this time. the 6 are getting bigger. are they safe to be around the babies? should we separate them? besides them trying to fly around when we are playing with them. they seem nice and almost like a momma to the babies. also I am posting a photo below of Big B. is this what its supposed to look like when they grow feathers? I am 100% new and want to make sure my little guys are healthy and happy.. from their chirps I think they are. I am just looking for validation.