Eastern 1/2 of the state. The gray tree frogs are usually
gray in color with lighter gray markings to blend in with a lichen-covered
tree, but are highly adaptable and capable of blending in to a multitude
of different habitat types. Like a chameleon, these frogs
can change their colors depending on mood, temperature, and to blend
in with their environment. They have large toe pads to help them
cling to various surfaces, including smooth leaves and glass.
The gray tree frog complex is comprised of two species, Hyla
chrysoscelis (Cope's Gray Tree Frog, below) and Hyla versicolor
(Eastern Gray Tree Frog, above). The ranges of both species
overlap to a large degree within the state and are identical in
appearance. The only sure ways to tell them apart are by their
calls and by DNA analysis.