This fellow crawled across a branch right in front of Derek’s eyes. He used play with them as a kid and called them whip snakes. Derek snatched it off the limb and brought it home and we watched it after it was released. It’s a rough green snake (Opheodrys aestivus) and here’s a good web site about it: The Savannah River Ecology Laboratory.
The rough green snake is an arboral species, and as you can see, it is very comfortable in the shrubs and trees. Notice how it is extending its length to reach another branch. Pretty cool to watch and harmless to humans. Eats insects too.