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The gray treefrog (Dryophytes versicolor) is a species of small arboreal holarctic tree frog native to much of the eastern United States and southeastern Canada. [ 2 ] It is sometimes referred to as the eastern gray treefrog , northern gray treefrog , [ 3 ] common gray treefrog , or tetraploid gray treefrog to distinguish it from its more ...
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These birds are notable for their vocalization, especially their remarkable ability to mimic a wide variety of birds and other sounds heard outdoors. The species tend towards dull grays and browns in their appearance. Five species have been recorded in Illinois. Gray catbird, Dumetella carolinensis; Curve-billed thrasher, Toxostoma curvirostre (A)
CHICAGO -- Wildlife biologist Chuck Rizzo climbs into what looks like an enormous white bucket and slowly begins to rise. The metal arm of an aerial lift truck propels him higher and higher, above ...
Cope's gray treefrog [2] (Dryophytes chrysoscelis) is a species of treefrog found in the United States and Canada. It is almost indistinguishable from the gray treefrog (Dryophytes versicolor), and shares much of its geographic range. Both species are variable in color, mottled gray to gray-green, resembling the bark of trees.
Canyon tree frog: Dryophytes avivocus (Viosca, 1928) Bird-voiced treefrog: Dryophytes bocourti (Mocquard, 1899) Bocourt's tree frog: Dryophytes chrysoscelis (Cope, 1880) Cope's gray treefrog: Dryophytes cinereus (Schneider, 1799) American green tree frog: Dryophytes euphorbiaceus (Günther, 1858) Southern highland tree frog: Dryophytes eximius ...
The public is encouraged to report any high concentrations of dead birds they may find as the Illinois Department of Natural Resources suspect avian influenza has killed at least 300 waterbirds ...
Some of the frogs are quite accomplished gliders, for example, the Chinese flying frog Rhacophorus dennysi can maneuver in the air, making two kinds of turn, either rolling into the turn (a banked turn) or yawing into the turn (a crabbed turn). [54] [55] Hylidae flying frogs. The other frog family that contains gliders. [56]