Gray Treefrog

Hyla versicolor

Identification Photo by Kiley Briggs

The Gray Treefrog measures from 2-2.5 inches. Adult Gray Treefrogs have a gray lichen-like pattern on their skin with a light patch under the eyes, and no dorsolateral ridges (no folds of skin on either side of its back). Recently metamorphosed (just changed from a tadpole) Gray Treefrogs are bright emerald green with smooth skin. The Gray Treefrog has larger adhesive toe pads than the Spring Peeper and is an excellent climber.

Gray Treefrogs have a loud short trill and often call from the trees where they feed. They generally call on warm, humid nights from April through July. Their peak calling time is at the beginning of June.

They deposit 1,000-2,000 eggs in clusters of 10-40. Tadpoles are distinguishable by their reddish-orange tails.

Get more detailed identification and life history information by downloading the chart here.

You can learn more about this species and see some video footage by checking out this clip from our Rattlers, Peepers & Snappers DVD.

Records in Vermont of Hyla versicolor (Gray Treefrog)

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Gray Treefrogs breed in slow moving or standing water with abundant vegetation. They are widely distributed in Vermont but they are most common in lowlands and missing from our highest elevations.


This species has a state natural heritage rank of S5 (common). Please report sightings of this species in Vermont if you have not reported them within the last five years from a given location. Any natural history observations (feeding, migrations, road crossing areas, early or late season appearance, abnormalities, etc.) are appreciated. Photographs are always helpful, particularly if your report is the first report of this species from a town.

Additional Photos

Photo by Molly Kennedy Photo by Toby Alexander Photo by Dana Adams Photo by Carrie Herzog Photo by Kelly Holloran Photo by Kiley Briggs Photo by Ron Haskell

More Info

Species summary written by Ariel K. McK. Burgess.