OK, this is may be a strange question, but I had a broody cochin hen in with a bantam mixed-breed roo and I put some eggs under the cochin. She hatched one single golden laced polish chick. I kept the three of them together and the roo has always been great. Now the polish chick has grown into an adult, fully feathered, hen but I have not ONCE seen the rooster try to mate with her. I'm sure if I removed her and put her back he probably would, but if they are kept together from day one do roosters "know" that it's a bad idea? It just seemed odd to me but I spend quite a bit of time with my chickens and I've NEVER seen him try. Anyone else experienced this?