Niceforo Maria’s Oldfield Mouse vs Redhead

Thomasomys nicefori compared with Aythya americana

Key Differences

• Niceforo Maria’s Oldfield Mouse is Least Concern while Redhead is Not Evaluated.

Taxonomic Classification

Rank	Niceforo Maria’s Oldfield Mouse	Redhead
Kingdom same	Animalia (Animals)	Animalia (Animals)
Phylum same	Chordata (Chordates)	Chordata (Chordates)
Class	Mammalia (Mammals)	Aves (Birds)
Order	Rodentia (Rodents)	Anseriformes (Anseriformes)
Family	Cricetidae	Anatidae
Genus	Thomasomys	Aythya
Species	Thomasomys nicefori	Aythya americana

Evolutionary Relationship

Niceforo Maria’s Oldfield Mouse and Redhead share a common ancestor at the Phylum level: Chordata. (Chordates)

Conservation Status

Niceforo Maria’s Oldfield Mouse

LC — Least Concern

Redhead

NE — Not Evaluated

Physical Characteristics

Attribute	Niceforo Maria’s Oldfield Mouse	Redhead
Diet	—	—
Average Lifespan	—	—
Average Length	—	—
Average Weight	—	—

Habitat & Geographic Range

Niceforo Maria’s Oldfield Mouse

Habitat

Typically found in diverse terrestrial and aquatic ecosystems.

Range

Found in Colombia.

Redhead

Habitat

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

Range

Found across Europe (7 countries) and North America (United States).

Redhead

Redhead (Aythya americana) is classified as Not Evaluated (NE) on the IUCN Red List. Not yet evaluated against IUCN Red List criteria. Conservation status remains to be determined.