While they do spend a lot of time on land, mostly in wooded habitats (go figure) they aren't a tree frog. You have probably seen them before and just not known what they were. They breed pretty early, before spring peepers even. Their call kinda sounds like turkeys IMO. They are the only frog found north of the Artic circle.
Picture from
www.cortland.edu
Map from
www.wikipedia.com
Gray treefrogs are also another species that come to mind. Most frogs in the U.S. won't kill the predator but may cause burning skin or eye irritation in humans. A fish would probably spit it out but it's not really worth the risk IMO. It's better to know what your dealing with.