These are my first chicks- I have 10 total, there are 4 easter eggers and 6 olive eggers. They are all between 1-2 weeks old. I noticed that some of them have... what seem to be rooster plume feathers growing near their rear ends. Is this a way to sex chickens? Some of them of the same age do not have these feathers which makes me think it is rooster specific I have posted some pics for reference. First pic chick one (if this theory is correct) would be a hen while chick 2 could be a rooster. Pic 2.. This chick is the biggest of all the chicks which already made him a rooster suspect, and he is kind of a ********. He has big feathers that stick out from his rump. Am I totally off with this theory?