far north eastern illinois antioch be exact about 1.5 miles south of wisconsin. this morning about 11 am i was walking into my dads shop i saw some gray thing sitting on a step i origonaly thought it was rock but it moved so i nabbed it and saw the yellow on the back legs and knew it was a gray tree frog i think i only found it because of all the rain last night plus i found another american toad by some bushes in my yard about 20 minutes later.