I agree with Wynette. #2 definitely looks like a roo, and #3 appears to be getting a bit of comb color as well. Easter Eggers can be a challenge to tell gender on, and several times I have had a roo that was a little late in developing. One telltale sign of a roo is when a young bird's legs suddenly get thicker and sturdier-looking than those of its siblings. It's a sign that the chick is getting ready to undergo a serious growth spurt, which usually goes along with being a roo. Our EE pullet chicks always grow a little more slowly than their brothers.