Black-faced Tanager vs Colombian Oldfield Mouse

Schistochlamys melanopis compared with Thomasomys dispar

Key Differences

• Black-faced Tanager is Least Concern while Colombian Oldfield Mouse is Data Deficient.

Taxonomic Classification

Rank	Black-faced Tanager	Colombian Oldfield Mouse
Kingdom same	Animalia (Animals)	Animalia (Animals)
Phylum same	Chordata (Chordates)	Chordata (Chordates)
Class	Aves (Birds)	Mammalia (Mammals)
Order	Passeriformes (Songbirds)	Rodentia (Rodents)
Family	Thraupidae	Cricetidae
Genus	Schistochlamys	Thomasomys
Species	Schistochlamys melanopis	Thomasomys dispar

Evolutionary Relationship

Black-faced Tanager and Colombian Oldfield Mouse share a common ancestor at the Phylum level: Chordata. (Chordates)

Conservation Status

Black-faced Tanager

LC — Least Concern

Colombian Oldfield Mouse

DD — Data Deficient

Physical Characteristics

Attribute	Black-faced Tanager	Colombian Oldfield Mouse
Diet	—	—
Average Lifespan	—	—
Average Length	—	—
Average Weight	—	—

Habitat & Geographic Range

Black-faced Tanager

Habitat

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

Range

Distributed across Colombia, Ecuador, Norway, and Venezuela.

Colombian Oldfield Mouse

Habitat

Typically found in diverse terrestrial and aquatic ecosystems.

Range

Found in Colombia.

Black-faced Tanager

A medium-sized tanager with a distinctive black face mask contrasting with grey-white body plumage, black-faced tanagers inhabit forest edges, secondary woodland, cerrado, and open scrub across a broad range from Colombia and Venezuela south through the Guianas and Brazil. They are adaptable birds tolerant of disturbed and degraded habitats, foraging on fruit, berries, and insects in pairs and small groups. Listed as Least Concern and among the more common tanagers in disturbed habitats across northern South America.

Colombian Oldfield Mouse

<em>Thomasomys dispar</em>, commonly known as the Colombian Oldfield Mouse, is a small rodent species belonging to the genus <em>Thomasomys</em> within the family Cricetidae. This species is classified as Data Deficient, indicating that insufficient information is currently available to evaluate its conservation status with confidence. It has been documented in Colombia, where it inhabits diverse terrestrial and aquatic-adjacent environments. Members of the genus <em>Thomasomys</em> are typically associated with high-altitude Andean habitats, including páramo grasslands, shrublands, and montane forest edges, where they occupy ground-level microhabitats and burrow in soft soils. These mice are generally omnivorous, consuming seeds, plant material, and invertebrates, though specific dietary data for <em>Thomasomys dispar</em> have not been recorded. Biological traits of this species remain poorly documented in the scientific literature. The Data Deficient classification highlights the need for targeted surveys in Colombian Andean regions to determine population size, distribution, and the ecological requirements of this poorly known rodent.

Shared Countries

Both species can be found in 1 countries:

🇨🇴 Colombia