Where did everybody go?

I put out bird feed, cracked corn and plenty of water in my backyard for a wide variety of birds, squirrels and rabbits. This adult Cooper's hawk (with its distinctive red eyes, classic raptor beak and talons) dropped by on a breezy Sunday and sat on my fence, ready to poach any bird that didn't notice it. All potential victims immediately disappeared and the hawk left when I tried to get closer for a better photo.

Canon T2i DSLR, Tamron 200-400mm lens at 390mm, f/9, 1/800th second, ISO 800.

Cropped, sharpened.