Eastern Gray Treefrog Hyla versicolor

Description: 1 - 2 inches. Although the name may imply that it is always gray, Gray Treefrogs can actually change color from gray to green, tan, or brown. The back may have a random pattern of darker color. The inside of the thigh is yellowish in color, and the toes have large pads on the end that allow them to climb many surfaces.

Similar Species: Cope's Gray Treefrogs are identical in appearance but can be distinguished by their faster, harsher call.

Comments: Previously reported from eastern North Dakota. Recent surveys have detected only Cope's Gray Treefrogs, making it likely that this species had been reported by mistake. No verified populations of Eastern Gray Treefrog are known from North Dakota.

Recent surveys (2018) detected this species in Kittson County, Minnesota within a few miles of the North Dakota border.

Distribution Map
Distribution of the Eastern Gray Treefrog (Hyla versicolor)

County level distribution of this species in North Dakota. Map generated from data collected from voucher specimens and photographic records.

Phenology of Eastern Gray Treefrog (Hyla versicolor)