CHORUS FROG

also called Swamp Tree Frog, or Swamp Cricket Frog (Pseudacris), any of about seven species of tree frogs belonging to the family Hylidae. Chorus frogs are found from Canada to the southern United States. They are able to climb into low shrubbery and other vegetation but are not as adept at climbing as are most other hylids. Chorus frogs typically have a trilling call and a light streak on the upper lip. Maximum length is about 2.5 to 3 centimetres (1 to 1 1/5 inches).