I had a pair of immature Cooper's Hawks in and about the yard last night. They chased each other high and low, in and out, with lots of vocals. I assume their antics were courtship, but they were not mature birds. How long does it take for them to get adult plumage and to mate? My chickens were flattened to the ground during their presence. I doubt a Cooper's would take an adult chicken, but the Red-tailed that was eyeing them over the weekend most certainly had food on her mind. Scott lexington