Saturday 9 September 2000

American Bullfrog (Lithobates catesbeianus)

OTHER NAMES: Bullfrog
Latin Etymology:  Lithobates ("Rock climber") catesbeianus (for Naturalist Mark Catesby)

Adult American Bullfrog (Lithobates catesbeianus) at Harrier Lake, St Charles, Illinois - August 2024


Featured Subspecies: N/A
Weight: 175-500g  /  Length: 9-15cm
NO UK STATUS IUCN Red List: Least Concern

A large species of frog whose native range is in the Eastern United States but is a major invasive species in various locations around the world.  They are ambush predators and will target anything that they can overpower and fit in their mouth, which can include such ambitious targets as small reptiles, small birds, scorpions, tarantulas and crayfish, as well as unusually for frogs in North America, aquatic species.

Related Species:
Order: Anura 
Family: Ranidae 
Genus: Lithobates 
SUBSPECIES: none - monotypic 

 - Sighting Locations -

UNITED STATES - Found in most of the Eastern Lower 48, Invasive in much of West
 - CHICAGO TO ALASKA ROADTRIP 2024: Seen in Illinois


Further Notes: BirdForum Opus, IUCN Red List, RSPB, Wikipedia, Xeno-canto

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