This afternoon I heard a terrific racket coming from a dense bush where birds stage to visit my feeders. When I approached, a cooper's hawk took off from the exterior of the bush where it was probably waiting for one of the many sparrows safely out of reach in the bush interior - to panic and take off.
The hawk has on occassion perched on the roof of the feeder.
Having goldfinches, house finches, bluejays ( since I've added a little cracked corn/shelled peanuts), juncos, woodpeckers, nuthatches, chickadees and the usual hoards of sparrows visit.
Jim