I'm looking to determine the breed and/or gender of some of these chicks. I know that my black are Stars (sex links) and 'should' all be female. I am wondering about the 4 yellows 3ish weekers and the 1 red 6-7ish weeker. Here is the red one And the yellows: the "twins" they look almost identical... Our all blond chick Our red headed yellow chick. This one is similar to the twins but darker.