Grasshopper Sparrow vs Olive-gray Thomasomys

Ammodramus savannarum compared with Thomasomys cinereus

Key Differences

• Grasshopper Sparrow is Critically Endangered while Olive-gray Thomasomys is Least Concern.

Taxonomic Classification

Rank	Grasshopper Sparrow	Olive-gray Thomasomys
Kingdom same	Animalia (Animals)	Animalia (Animals)
Phylum same	Chordata (Chordates)	Chordata (Chordates)
Class	Aves (Birds)	Mammalia (Mammals)
Order	Passeriformes (Songbirds)	Rodentia (Rodents)
Family	Passerellidae	Cricetidae
Genus	Ammodramus	Thomasomys
Species	Ammodramus savannarum	Thomasomys cinereus

Evolutionary Relationship

Grasshopper Sparrow and Olive-gray Thomasomys share a common ancestor at the Phylum level: Chordata. (Chordates)

Conservation Status

Grasshopper Sparrow

CR — Critically Endangered

Olive-gray Thomasomys

LC — Least Concern

Physical Characteristics

Attribute	Grasshopper Sparrow	Olive-gray Thomasomys
Diet	—	—
Average Lifespan	—	—
Average Length	—	—
Average Weight	—	—

Habitat & Geographic Range

Grasshopper Sparrow

Habitat

Found across multiple habitat types including tropical and subtropical moist broadleaf forests, tropical and subtropical dry broadleaf forests, and flooded grasslands and savannas, among 5 distinct biome types spanning the Neotropic and Oceanian realms. Populations are also found in montane and highland environments at higher elevations.

Range

Distributed across Colombia, Ecuador, Norway, and United States. Currently classified as Critically Endangered on the IUCN Red List, this species faces significant conservation challenges across its range.

Olive-gray Thomasomys

Habitat

Typically found in diverse terrestrial and aquatic ecosystems.

Range

Found in Ecuador.

Shared Countries

Both species can be found in 1 countries:

🇪🇨 Ecuador