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Wood Frog

Lithobates sylavaticus
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Photo: Rémi Pattyn
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Map accurate as of 11/15/2022

Identification: 
  • Length: average length of adults around 3-4in (8-10cm)
  • Smooth skin
  • Dark mask around eyes
  • Dark to light brown
  • Lightly colored mid-dorsal and hind leg lines present
(Hammerson 1999)
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Distribution: Wood frogs are found only in Colorado's North-Central counties, at elevations between 7,900-9,800ft (2,400-3,000m). (Hammerson 1999)
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Activity: These diurnal frogs are primarily active from mid May to the end of September. They emerge when the ice of their breeding pools thaws out and breeding in those bodies of water can occur. Once they breed they typically disperse into better foraging habitats, sometimes even moving over snow drifts to make it to their desired foraging grounds. (Hammerson 1999)
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Conservation Status: While they are globally secure throughout much of their range in North America, Wood Frogs are considered a species of special concern in Colorado.

​NatureServe rank: G5 (Globally Secure), S3 (State Vulnerable).
Habitat: ​Wood frogs primarily reside in high alpine marshes, ponds, wet meadows, stream borders, and the forests that border them. (Hammerson 1999)
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Diet: Wood frogs primarily feed on aquatic invertebrates.
​(Hammerson 1999)
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Defense: 
Natural Predators: 

Cited & Additional Resources
Hammerson G. A. 1999. Amphibians and Reptiles in Colorado. University Press Colorado, Boulder.
Account compiled by: Rémi Pattyn
Reviewed by: 
Last Updated: 11/15/2022 by Anthony Berardi
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Visit our parent organization, Partners in Amphibian and Reptile Conservation (PARC), for more information on national conservation efforts and other  regional groups. This website and any products posted herein are  officially recognized by the national entity, Partners in Amphibian and  Reptile Conservation (PARC), as the efforts of an approved PARC chapter.


  • Home
  • About
    • Mission
  • Steering Committee 2023
  • Events
    • Meetings >
      • 2023 Annual Meeting
    • Photo contest
    • Field Trips >
      • 2021 Field Trips >
        • 2021 Southeastern Colorado Bash
      • Field Trips 2015
      • Field Trips 2014
      • Field Trips 2013
      • Field Trips 2012
  • Species
    • Glossary for Species Accounts
    • Amphibians
    • Turtles
    • Snakes
    • Lizards
  • News
  • Contact Us