I did some research,and I'm fairly positive it is legal to keep both species in Arkansas. There was only one species of frog that was illegal to keep, and it was not either the squirrel or the green tree frog. I really appreciate the care sheet, which for some reason I had not found by now.
I still haven't decided whether I"m going to keep it yet or not. I've never thought about keeping frogs before, but I'm starting to get pretty interested. The idea of setting up a paludarium(I think that's the right word) is also fairly appealing to me. I do prefer the appearance of Grays, but I also like the idea of keeping a native species, and honestly I have no idea where to find a gray treefrog.
Has anyone set one this type of habitat for a green tree frog before?
Would a running park be a good spot to release him if I do? There's a nice creek and a lot of trees. Our backyard is also frequented by mosquito's, so if that would be as good a spot as any that would be nice.