Eurasian Tree Sparrow vs Gray-headed Flying Fox

Passer montanus compared with Pteropus poliocephalus

Key Differences

• Eurasian Tree Sparrow is Endangered while Gray-headed Flying Fox is Vulnerable.

Taxonomic Classification

Rank	Eurasian Tree Sparrow	Gray-headed Flying Fox
Kingdom same	Animalia (Animals)	Animalia (Animals)
Phylum same	Chordata (Chordates)	Chordata (Chordates)
Class	Aves (Birds)	Mammalia (Mammals)
Order	Passeriformes (Songbirds)	Chiroptera (Bats)
Family	Passeridae	Pteropodidae (Fruit Bats)
Genus	Passer	Pteropus (Flying Foxes)
Species	Passer montanus	Pteropus poliocephalus

Evolutionary Relationship

Eurasian Tree Sparrow and Gray-headed Flying Fox share a common ancestor at the Phylum level: Chordata. (Chordates)

Conservation Status

Eurasian Tree Sparrow

EN — Endangered

Gray-headed Flying Fox

VU — Vulnerable

Physical Characteristics

Attribute	Eurasian Tree Sparrow	Gray-headed Flying Fox
Diet	—	—
Average Lifespan	—	—
Average Length	—	—
Average Weight	—	—

Habitat & Geographic Range

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.

Gray-headed Flying Fox

Habitat

Typically found in diverse terrestrial and aquatic ecosystems.

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.