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Western Chorus Frog

Western Chorus Frog Photo Credit: Scott Gillingwater

Western Chorus Frog Photo Credit: Scott Gillingwater

Psuedacris triseriata

Species at Risk Status

Federal Government status: Threatened

Provincial Government status: Not at risk


  • Small (3 cm), smooth skinned tree frog that varies in colour from greyish-green to brown.
  • Dark stripe through the eye and three dark stripes down the back.
  • Whitish line along the upper lip.
  • Belly is cream coloured.
  • Small toe discs


  • Feeds on beetles, flies, mosquitoes and slugs.

Habits and Reproduction

  • Breed early in the season beginning in late March and generally breed in areas where the water is at least 10 cm deep.
  • Rasping breeding calls “cre-ee-ee-eek” sounds like a thumbnail drawn over the teeth of a small comb.
  • Remain in the tadpole stage for approximately two months and live no more than a year as an adult.
  • Secretive and rarely seen outside of breeding season.
  • Forage for food in fields and open forest.
  • Hibernate beneath leaf litter, logs or underground.


  • Meadows and forest openings around vernal pools (typically are dry later in the season and do not support fish).


  • Loss of breeding sites and effects of pollutants such as herbicide and pesticides.

Conservation Actions

  • Learn the call of the chorus frog and listen for them in early spring. Please report the areas where you hear them.
  • Vernal pools are important habitat for many amphibian species. If you have them on your property, please try to leave them in their natural state.

Range Map

Range map

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