Hi, I have 6 americana chick that I hatched 2 weeks ago tomorrow. My question is: Some have told me that females grow tails first. 3 of mine has about a half inch talk and 3 doesn't have any. Does that mean I have 3 males and 3 females. When they were 1 day old I tried to sex them by there wings. I decided that I had 3 m and 3 f but don't know which one I decided on before. Didn't keep up with it. Had no way to tag them at that time. Thanks.