I have six 7 week old mixed breed chickens and I THINK I have figured out if they are cockerels or pullets. Tell me what you think please! The 3 together I think are cockerels. The next two pictures I think are pullets. The last one I hope is a pullet because he/she acts like the pullets and is smaller but has bigger comb and wattle although not as big as the 3 in the top.