I'd been home from work for only a few minutes today when I looked out into the back yard. The chickens were minding there business pecking around in the backyard (and not laying eggs) when I confirmed our suspicions earlier this summer. Confirmed with one correction. I'd previously stated that our visitor was an American Red-Tailed Hawk. These pictures suggest that what we have here is a Cooper's Hawk. Our visitor was a mere twenty feet from our coop subtlety taunting our hens. I've read a couple of online accounts of the Cooper's Hawk snatching chickens from the sky in broad daylight while owners were watching. So, fingers crossed that I'll get to experience that craziness.