First of all, we wore gloves to rule out the widely disputed "birds will stop coming back to their young if they can smell human scent on them" theory. Then we had to catch him. ( I nicknamed him Rex.) He obviously wasn't hurt, but he couldn't really fly yet. He must have gotten lucky when he fell out of the nest!
After I caught him, Mark located his nest. Rex's mom was pretty pissed at me. She kept swooping over my head and WEEP!ing at me the whole time I was holding him. Rex just wanted some food! He kept opening his mouth!
Mark returned Rex to his nest. He was almost flogged by mama bird in the process, but Rex seemed happy enough to be back at home.