California Red-Legged Frog (Rana drayto)

  • Post category:PRESERVE


  • Threatened under the federal endangered species act (FESA) and a California state species of special concern1
  • Habitat loss, altered, use of pesticides, biocides, and pathogenes


  • Usually associated with still, permanent bodies of freshwater, such as ponds, lakes, marshes or the slow flowing sections of creeks and streams

Feeding Behavior/Diet

  • Both adult and juvenile red-legged frogs are generally nocturnal or crepuscular. Most hunting occurs at night
  • Feed on a wide range of invertebrates and small vertebrates including aquatic and terrestrial insects, snails, crustaceans, fishes, worms, tadpoles, small mammals, and smaller frogs (including members of their own species)
  • Tadpoles are primarily herbivorous.


  • Females lay 750-4,000 eggs in clusters attached to aquatic vegetation, 2 to 6 inches below the water surface.
  • Eggs hatch in 2 to 3 weeks.
  • Once hatched, the tadpoles generally take between 11-20 weeks to metamorphose2

1 HELIX Environmental Planning Carson Creek Preserve Long Term Management Plan Rev 6/15/2021