Image of Red-tailed hawk

Description:

A pair of these cruised leisurely into a flock of Tree Swallows briefly, and then flew away... This one had some sort of short interaction with one of the swallows before leaving. I believe I've seen these consistently over the last year in this spot without ever being able to get a picture or even a good look. Usually they seem to be approaching the large water treatment pond, gliding in at around 50' elevation. I wonder whether anyone could hazard a guess.