Central Andes Oldfield Mouse vs Grasshopper Sparrow

Thomasomys contradictus compared with Ammodramus savannarum

Key Differences

Central Andes Oldfield Mouse is Data Deficient while Grasshopper Sparrow is Critically Endangered.

Taxonomic Classification

Rank	Central Andes Oldfield Mouse	Grasshopper Sparrow
Kingdom same	Animalia (Animals)	Animalia (Animals)
Phylum same	Chordata (Chordates)	Chordata (Chordates)
Class	Mammalia (Mammals)	Aves (Birds)
Order	Rodentia (Rodents)	Passeriformes (Songbirds)
Family	Cricetidae	Passerellidae
Genus	Thomasomys	Ammodramus
Species	Thomasomys contradictus	Ammodramus savannarum

Evolutionary Relationship

Central Andes Oldfield Mouse and Grasshopper Sparrow share a common ancestor at the Phylum level: Chordata. (Chordates)

View Phylum: Chordata

Conservation Status

Central Andes Oldfield Mouse

DD — Data Deficient

Grasshopper Sparrow

CR — Critically Endangered

Physical Characteristics

Attribute	Central Andes Oldfield Mouse	Grasshopper Sparrow
Diet	—	—
Average Lifespan	—	—
Average Length	—	—
Average Weight	—	—

Habitat & Geographic Range

Central Andes Oldfield Mouse

Habitat

Typically found in diverse terrestrial and aquatic ecosystems.

Range

Found in Colombia.

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.

Central Andes Oldfield Mouse

The Central Andes Oldfield Mouse (Thomasomys contradictus) is a species in the genus Thomasomys. It is currently classified as Data Deficient on the IUCN Red List. Found in Colombia.