Yellow-browed Sparrow vs Zeledon’s Mouse Opossum

Ammodramus aurifrons compared with Marmosa zeledoni

Taxonomic Classification

Rank	Yellow-browed Sparrow	Zeledon’s Mouse Opossum
Kingdom same	Animalia (Animals)	Animalia (Animals)
Phylum same	Chordata (Chordates)	Chordata (Chordates)
Class	Aves (Birds)	Mammalia (Mammals)
Order	Passeriformes (Songbirds)	Didelphimorphia (Didelphimorphia)
Family	Passerellidae	Didelphidae
Genus	Ammodramus	Marmosa
Species	Ammodramus aurifrons	Marmosa zeledoni

Evolutionary Relationship

Yellow-browed Sparrow and Zeledon’s Mouse Opossum share a common ancestor at the Phylum level: Chordata. (Chordates)

Conservation Status

Yellow-browed Sparrow

LC — Least Concern

Zeledon’s Mouse Opossum

LC — Least Concern

Physical Characteristics

Attribute	Yellow-browed Sparrow	Zeledon’s Mouse Opossum
Diet	—	—
Average Lifespan	—	—
Average Length	—	—
Average Weight	—	—

Habitat & Geographic Range

Yellow-browed Sparrow

Habitat

Typically found in various aerial, terrestrial, and aquatic environments.

Range

Distributed across Colombia, Ecuador, Norway, and Venezuela.

Zeledon’s Mouse Opossum

Habitat

Typically found in diverse terrestrial and aquatic ecosystems.

Range

Distributed across Colombia and Ecuador.

Yellow-browed Sparrow

Yellow-browed Sparrow (Ammodramus aurifrons) is classified as Least Concern (LC) on the IUCN Red List. Widespread and abundant across its range, with stable populations and no immediate conservation concerns.

Shared Countries

Both species can be found in 2 countries:

🇨🇴 Colombia 🇪🇨 Ecuador