Sorry if I'm repeating a thread or topic but I searched everything and can't find the answer. Here is my question; what makes a chicken a cuckoo? I just got 3 lemon cuckoo orpington hens, 1 has very visible bars the other two are barely noticeable. As I started to search info on cuckoo I noticed several breeds also have cuckoos varieties and don't know what makes some cuckoos and others not cuckoos.Dorothy