I have three young polish that I haven't been able to sex yet (for sure but I've had some strong feelings about a couple). The last 24 hours two of them have been fighting. They've never done this before. Only for a couple of minutes but hackles up and doing the boxing dance. Wouldn't this be male behavior? I know, I've had hens do this also but just wondered if chicks that were best buds a couple of days ago would only start to do this If they were both roosters?