This Cooper’s Hawk (*) kept an eye on us as we walked down the driveway:

We obviously pose no threat, so he let us pass unmolested.
I think the real reason had more to do with the dark brown-red stains on his (?) claws: that hawk just ate a fine meal and wanted time for quiet digestion and contemplation…
Hand-held Canon SX230HS, plenty of zoom, lots of purple fringing, and a cooperative bird.
(*) A juvenile, obviously, who could be either a Cooper’s or a Sharp-Shinned Hawk.