Probably a Cooper’s Hawk, also spotted on the same walk this afternoon. It flew up to a telephone pole, alighted there for a few seconds, and as I was trying to line up a shot with the camera, it took off again, then flew a few houses down the street to perch in this tree.
On iNaturalist
Full Photo (also on Flickr)
TODO: Full image is on Flickr. Is this crop there also? Is either on K2R?