My 13 week old Barred Plymouth Rock is very aggressive and has been pecking at my Lavender Orpington. I'm not sure if this is a "pecking order" thing but it made me start wondering if "she" could be a "he". I thought I should confirm that my hen is a "she" then work on the pecking if it gets serious. I hope the pic are helpful. He they are… so…pullet or roo??