Gray Treefrog Hyla versicolor
Gray
Treefrog (RealAudio sound sample)
The male's advertisement call is a short, melodic trill lasting about one-half second and repeated every few seconds. Pulse-rates of trills vary with region (slow in the upper mid-west, faster in the southwest part of its range.) Found throughout eastern United States. Breeds from late spring into summer in ponds and pools surrounded by shrubs and trees.
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