Brown Slender Toad vs trinta-réis-boreal / gaivina

Ansonia leptopus compared with Sterna hirundo

Key Differences

• Brown Slender Toad is Least Concern while trinta-réis-boreal / gaivina is Endangered.

Taxonomic Classification

Rank	Brown Slender Toad	trinta-réis-boreal / gaivina
Kingdom same	Animalia (Animals)	Animalia (Animals)
Phylum same	Chordata (cordados)	Chordata (cordados)
Class	Amphibia (Anfíbios)	Aves (ave)
Order	Anura (Frogs & Toads)	Charadriiformes (Charadriiformes)
Family	Bufonidae	Laridae
Genus	Ansonia	Sterna
Species	Ansonia leptopus	Sterna hirundo

Evolutionary Relationship

Brown Slender Toad and trinta-réis-boreal / gaivina share a common ancestor at the Phylum level: Chordata. (cordados)

Conservation Status

Brown Slender Toad

LC — Least Concern

trinta-réis-boreal / gaivina

EN — Endangered

Physical Characteristics

Attribute	Brown Slender Toad	trinta-réis-boreal / gaivina
Diet	—	—
Average Lifespan	—	—
Average Length	—	—
Average Weight	—	—

Habitat & Geographic Range

Brown Slender Toad

Habitat

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

trinta-réis-boreal / gaivina

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.

trinta-réis-boreal / gaivina

O trinta-réis-comum (Sterna hirundo) está classificado como Em Perigo (EN) na Lista Vermelha da IUCN. Em alto risco de extinção na natureza, com declínio populacional significativo e ameaças contínuas à sobrevivência.