Here's Papa on th eledge of a nearby building. I had been watching the parents chasing birds into trees but never saw a successful attack.
A few days after this, I saw the nest unattended and heard a blue jay screaming in the adjacent tree.
A few minutes later I saw the male glide quietly across an opening and into the tree. He emerged on the other side with lunch in his talons and settled down on the ground. It was quiet again except for his calls to his mate.