3/4-1 3/8" (1.9-3.5cm). Tan to brown to gray, with characteristic dark X on back. Large toe pads.Voice:A high-pitched ascending whistle, sometimes with a short trill. Chorus sometimes with a short trill. Chorus sounds like the jingle of bells. Males call from shrubs and trees standing in or overhanging water.
Northern (P. c. crucifer), unmarked belly; throughout species' range except s. Georgia and Florida.
Southern (P. c. bartramiana), spotted belly; se. Georgia and adjacent n. Florida.
In southern areas, November to March; in northern areas, March to June, with the start of warm rains.
Wooded areas in or near permanent or temporarily flooded ponds and swamps.
Manitoba to the Maritime Provinces south through c. Florida, west to e. Texas, and north into c. Wisconsin.
Nocturnal. The Spring Peeper is one of the most familiar frogs in the East. Its chorus is among the first signs of spring. Peepers hibernate under logs and loose bark.