Brown Cobblestone Lichen vs Eurasian Tree Sparrow

Acarospora fuscata compared with Passer montanus

Key Differences

Brown Cobblestone Lichen is Least Concern while Eurasian Tree Sparrow is Endangered.

Taxonomic Classification

Rank	Brown Cobblestone Lichen	Eurasian Tree Sparrow
Kingdom	Fungi (Fungi)	Animalia (Animals)
Phylum	Ascomycota (Sac Fungi)	Chordata (Chordates)
Class	Lecanoromycetes (Lecanoromycetes)	Aves (Birds)
Order	Acarosporales (Acarosporales)	Passeriformes (Songbirds)
Family	Acarosporaceae	Passeridae
Genus	Acarospora	Passer
Species	Acarospora fuscata	Passer montanus

Conservation Status

Brown Cobblestone Lichen

LC — Least Concern

Eurasian Tree Sparrow

EN — Endangered

Physical Characteristics

Attribute	Brown Cobblestone Lichen	Eurasian Tree Sparrow
Diet	—	—
Average Lifespan	—	—
Average Length	—	—
Average Weight	—	—

Habitat & Geographic Range

Brown Cobblestone Lichen

Habitat

Native to Europe and North America, inhabiting ecosystems characteristic of the region.

Range

Distributed across Denmark, Norway, Portugal, and United States.

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 Cobblestone Lichen

The Brown Cobblestone Lichen (Acarospora fuscata) is a species in the genus Acarospora. It is currently classified as Least Concern on the IUCN Red List. Native to Europe and North America, inhabiting ecosystems characteristic of the region.

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.