Amphibian calls
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ID code: WOOD
Wood Frog
Series of quacks, similar
to a duck call.
Wood Frog
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Bull Frog
Deep growling bass, "jug-o-rum".
ID code: BULL
Bullfrog
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ID code: GRFR
Green Frog
"Gunk" or a deep twang
like a loose banjo string.
Green Frog
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ID code: GRTR
Gray Tree Frog
Short trill like the call of a Red Bellied Woodpecker.
Gray Tree Frog
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American Toad
Long, drawn-out trill.
ID code: AMTO
American Toad
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Northern Leopard Frog
"Creeeek", or like a finger rubbed on a wet balloon.
ID code: NLFR
Northern Leopard Frog
  • Rana pipiens 
  • About 11 cm (4.3 inches) long
  • Varies from green to brown in colour
  • Large dark circular spots on back, sides, and legs
  • Bufo americanus
  • About 5-9 cm (2-3.5 inches) long
  • Varies from yellow to brown to black
  • "Warty" bumps on body
  • Hyla versicolor
  • About 3.8-5.1 cm (1.5-2 in.) long
  • Varies from gray to green depending on surroundings
  • Bright yellow patches underneath hind legs
  • Rana clamitans
  • About 5-10 cm (2 to 4 inches) long
  • Varies from green to bronze
  • Prominent ridges run along sides of back
  • Rana catesbeiana
  • About 9-15 cm (3.5-6 inches) long, or even larger
  • Varies from green to bronze
  • Ridge curves around tympanum (ear), does not go along the back or sides
  • Rana sylvatica
  • About 50-70 mm (2-2.8 inches) long
  • Varies from brown, tan, to rust colors, usually with dark eye mask
  • Underparts pale yellowish or greenish
Select each image for audio and more.