
Gray tree frogs often have dark blotches across their body and circular suction disks on each toe to aid in climbing vegetation. Photo by Mike Marchand

Gray tree frogs can be difficult to find on trees and often hide under loose bark or in cavities. Photo by Mike Marchand

During May and June the loud, resonating trill of the gray tree frog can be heard near areas of shallow water. Photo by Mike Marchand

Gray tree frogs have a warty appearance to their skin. Color may vary dramatically from green to brown. Photo by Christopher Manning
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