Hello! I started a small flock in an urban setting not too long ago (April 20). The first 6 chicks I purchased were straight-run BA's from TSC. The following week I purchased 6 Americauna pullets. I fear there may be some males in the mix. Possibly even most of the BA's. My girlfriend swears she's heard what she describes as a rooster going through puberty and making his 'call.' The problem is that I can't have any roosters where I'm at because of the noise they make. 5 of the 6 BA's look the same. Any experience in helping me determine the sex would be greatly appreciated! This BA is different than the other 5: Is it possible that I could have 5 males and 1 female Black Australorp?