I just started raising some chicks for my granddaughter and I bought some pullets or at least that is what I was told but I'm not too sure. I have a buff and 2 wyandottes. They're about 17 weeks old and they look more like roos to me, niether one of them crow and they lay around on the floor of the coop often and another thing. I've noticed some feathers on the coop floor, do I need to put a nesting box in it, HELP.