Hi, I am new to chickens but, I was reading online that sometimes chicks that feather out late are cockerls. I have 11 buff orpingtons that are 3 weeks old and all except for one are almost completly feathered out. I was wondering if that on could be a cockerel. I ordered them from healthy chicks and more. I ordered all pullets but I am afraid that I might have gotten a cockerel. Please let me know what you think.