Hotson’s Brush-tailed Mouse vs Ring-necked Duck

Calomyscus hotsoni compared with Aythya collaris

Taxonomic Classification

Rank	Hotson’s Brush-tailed Mouse	Ring-necked Duck
Kingdom same	Animalia (Animals)	Animalia (Animals)
Phylum same	Chordata (Chordates)	Chordata (Chordates)
Class	Mammalia (Mammals)	Aves (Birds)
Order	Rodentia (Rodents)	Anseriformes (Anseriformes)
Family	Calomyscidae	Anatidae
Genus	Calomyscus	Aythya
Species	Calomyscus hotsoni	Aythya collaris

Evolutionary Relationship

Hotson’s Brush-tailed Mouse and Ring-necked Duck share a common ancestor at the Phylum level: Chordata. (Chordates)

Conservation Status

Hotson’s Brush-tailed Mouse

LC — Least Concern

Ring-necked Duck

LC — Least Concern

Physical Characteristics

Attribute	Hotson’s Brush-tailed Mouse	Ring-necked Duck
Diet	—	—
Average Lifespan	—	—
Average Length	—	—
Average Weight	—	—

Habitat & Geographic Range

Hotson’s Brush-tailed Mouse

Habitat

Typically found in diverse terrestrial and aquatic ecosystems.

Ring-necked Duck

Habitat

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

Range

Widely distributed across Asia (Taiwan), Europe (5 countries), North America (United States), and South America (Colombia, Ecuador, Venezuela).

Ring-necked Duck

Ring-necked Duck (Aythya collaris) 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.