Before arriving at the big field a cooper's hawk had swooped in and made a kill. I wanted to see this cooper's, but couldn't find him. However, I did find proof-of-snatch, feathers on the ground up the little hill. Titmouse feathers. They're added to my collection.
The immature hawk flew down onto some reeds while the small birds stayed smartly under cover. Lots of effort and analysis, but no catch. Love those talons.