The houses around here were built in the 50's. The only water close by is lake st clair. I introduced toads, chorus frogs, peepers and gray tree frogs over the last 6 years. All the species were quick to adapt and reproduce in my pond except the gray tree frogs which only this year did they finally have a good showing of them singing in the neighborhood and laying eggs in my pond. I have also brought in red spotted newts which also have taken off and are self sufficient.

The closest I have heard tree frogs has been about 20 miles away at metro parks.