I have one hen the squawks like a terydactyl when we go near her in the nesting box. It seems that she stays in that box as long as there is an egg beneath her. After we take it from her she eventually leaves the box. I have another hen that always seems to be sitting on a number of eggs, including her own, and I believe she stays there as well until they are taken from her. Are these hens broody? The kids would love hatch out some chicks but I have no experience with that. One hen is a buff Orpington and the other is an Easter Egger.