source site Cope's Grey Tree Frog (Hyla chrysoscelis) is virtually indistinguishable from the northern Grey Tree Frog (Hyla versicolor). Aside from their geographic range (H. versicolor doesn't get this far south) they can only be distinguished genetically and by their call. The call of Cope's Tree Frog has a frequency that is twice that of Hyla versicolor. Convergent with the frequency of their call, the chromosomal compliment of Cope's Grey Tree is twice that of their congener — the Grey Tree Frog. H. chrysoscelis breeds in a wide variety of wetlands including seasonal pools, shallow margins of permanent wetlands and even roadside ditches. Their loud harsh trill usually give their location away quite conveniently. This species is regularly heard in mid-town.
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