I'm trying to identify this bird that is on the rocks at the lake's edge in my back yard in South Carolina. I was outside, and suddenly realized he was sitting there about 10 ft from me and was not trying to fly away, so I became curious as to what it is. It's approximately 5 inches in length, and I notice the white spots on his head and the long wingtips. I'm thinking maybe it's a juvenile and he's just waiting for the parents to come back, and that's why he doesn't try to get away.
I would love to know what it is just for curiosities sake, and I can't find it in my bird books.
Thanks to anyone who can help.