Hello.. I'm new at chicken raising and had a question regarding sexing chicks.. I know it's nearly impossible. I have seven, 5 week old chicks.. all different breeds. I caught my silkie chick and polich chick engaged in mock battle! They hopped at each other, chest to chest like they were trying to spur each other. is this only male behavior? Do female chicks do this too? I soooooo want them to be hens, otherwise I have to re-home them. Thanks!