Brown Slender Toad vs Eurasian Tree Sparrow

Ansonia leptopus compared with Passer montanus

Key Differences

• Brown Slender Toad is Least Concern while Eurasian Tree Sparrow is Endangered.

Taxonomic Classification

Rank	Brown Slender Toad	Eurasian Tree Sparrow
Kingdom same	Animalia (Animals)	Animalia (Animals)
Phylum same	Chordata (Chordates)	Chordata (Chordates)
Class	Amphibia (Amphibians)	Aves (Birds)
Order	Anura (Frogs & Toads)	Passeriformes (Songbirds)
Family	Bufonidae	Passeridae
Genus	Ansonia	Passer
Species	Ansonia leptopus	Passer montanus

Evolutionary Relationship

Brown Slender Toad and Eurasian Tree Sparrow share a common ancestor at the Phylum level: Chordata. (Chordates)

Conservation Status

Brown Slender Toad

LC — Least Concern

Eurasian Tree Sparrow

EN — Endangered

Physical Characteristics

Attribute	Brown Slender Toad	Eurasian Tree Sparrow
Diet	—	—
Average Lifespan	—	—
Average Length	—	—
Average Weight	—	—

Habitat & Geographic Range

Brown Slender Toad

Habitat

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

Eurasian Tree Sparrow

Habitat

Found across multiple habitat types including tropical and subtropical moist broadleaf forests, tropical and subtropical dry broadleaf forests, and tropical and subtropical grasslands and savannas, among 6 distinct biome types. Populations are also found in montane and highland environments at higher elevations.

Range

Widely distributed across Asia (Indonesia, Philippines, Singapore), Europe (7 countries), North America (Canada, United States), and Oceania and the Pacific (Australia, Marshall Islands). 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.

Eurasian Tree Sparrow

Eurasian Tree Sparrow (Passer montanus) 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.