Thank you for the info. I supposed to have six hens and they are around the age of three to four months. They are all different breeds. One Black Ostrolaup, one Rhode Island Red, one RIRmix with what appears to be a buckeye. One Buckeye, one Buff Orphington and the last that is a mix of what I was told a Dominique but it looks like a Buff Orphington and something??? Anyway - Love all of them to death and I have a question about the Black Ostrolaup and the Buckeye. Do chickens compete with each other on who can get on the fence and try and crow or act like a roo?
Hens will compete with each other to get on fences, but if they are actually crowing you probably have some roosters. I've heard stories of hens that crowed, but in 50 years of raising chickens, I've never seen it. If you will post post some pictures of your Black Australorp and Buckeye, we can tell you whether or not they are roosters.