Quote Originally Posted by Tony View Post
Cope's and Easterns appear identical, the only way to differentiate them is by call or chromosome counts. Your big green frogs are probably mink frogs, green frogs, or bullfrogs.
I wasnt totally sure, going through the sounds they sound just like grey tree frogs...but they look nothing like the one I had.

This is what mine looks like - EEK! - Critter Corner - Eastern Gray Treefrog

This is what the ones I was finding looked like - EEK! - Critter Corner - Cope's Gray Treefrog

It says on the second link "Note: There aren't many differences between this and the eastern gray treefrog. Cope's tends to be smaller, has smoother skin, and when calling, is totally green without dark markings on its back"

My Grey tree frog is a juvenile, so I thought maybe that explained why the others looked so much bigger in comparison.