I bought 7 peachicks and they are about 3 & 1/2 months old now. I can only tell one of them apart and I am pretty sure she is a girl. I have read the other posts about how to tell the sex, but I really need someone else to help. They all look alike to me. When I bought them, the seller said he thought at least one was a male. I look and see all boys and one girl. I would really appreciate your advise. Thank you!