We are brand new city chicken farmers!!! We bought 4 pullets on April 27, assuming that they were less than a week old. When should we expect eggs? Do we need 4 individual laying boxes or will they all lay in the same one. Also, just got 4-5 week old New England Bantams in hopes to get a rooster....any sign on the chicks which one is a male? We have noticed that one of the four already have the thingy growing on top of its head, is that a sign of a rooster? Thanks, we have a lot to learn about these.