Brown Slender Toad vs Речная крачка

Ansonia leptopus compared with Sterna hirundo

Key Differences

• Brown Slender Toad is Least Concern while Речная крачка is Endangered.

Taxonomic Classification

Rank	Brown Slender Toad	Речная крачка
Kingdom same	Animalia (животные)	Animalia (животные)
Phylum same	Chordata (хордовые)	Chordata (хордовые)
Class	Amphibia (земноводные)	Aves (птицы)
Order	Anura (бесхвостые земноводные)	Charadriiformes (ржанкообразные)
Family	Bufonidae	Laridae
Genus	Ansonia	Sterna
Species	Ansonia leptopus	Sterna hirundo

Evolutionary Relationship

Brown Slender Toad and Речная крачка share a common ancestor at the Phylum level: Chordata. (хордовые)

Conservation Status

Brown Slender Toad

LC — Least Concern

Речная крачка

EN — Endangered

Physical Characteristics

Attribute	Brown Slender Toad	Речная крачка
Diet	—	—
Average Lifespan	—	—
Average Length	—	—
Average Weight	—	—

Habitat & Geographic Range

Brown Slender Toad

Habitat

Typically found in freshwater habitats, moist forests, and wetlands.

Речная крачка

Habitat

Found across multiple habitat types including tropical and subtropical dry broadleaf forests, flooded grasslands and savannas, and montane grasslands and shrublands, among 9 distinct biome types spanning the Neotropic and Palearctic realms. Populations are also found in montane and highland environments at higher elevations.

Range

Widely distributed across Europe (7 countries), North America (United States), and South America (Colombia, Ecuador, Venezuela). Currently classified as Endangered on the IUCN Red List, this species faces significant conservation challenges across its range.

Brown Slender Toad

The Brown Slender Toad (Ansonia leptopus) is a species in the genus Ansonia. It is currently classified as Least Concern on the IUCN Red List. Typically found in freshwater habitats, moist forests, and wetlands.

Речная крачка

Common Tern (Sterna hirundo) is classified as Endangered (EN) on the IUCN Red List. At high risk of extinction in the wild, with significant population decline and ongoing threats to survival.