Flat-headed Kusimanse vs Ring-necked Duck

Crossarchus platycephalus compared with Aythya collaris

Taxonomic Classification

Rank	Flat-headed Kusimanse	Ring-necked Duck
Kingdom same	Animalia (Animals)	Animalia (Animals)
Phylum same	Chordata (Chordates)	Chordata (Chordates)
Class	Mammalia (Mammals)	Aves (Birds)
Order	Carnivora (Carnivorans)	Anseriformes (Anseriformes)
Family	Herpestidae	Anatidae
Genus	Crossarchus	Aythya
Species	Crossarchus platycephalus	Aythya collaris

Evolutionary Relationship

Flat-headed Kusimanse and Ring-necked Duck share a common ancestor at the Phylum level: Chordata. (Chordates)

Conservation Status

Flat-headed Kusimanse

LC — Least Concern

Ring-necked Duck

LC — Least Concern

Physical Characteristics

Attribute	Flat-headed Kusimanse	Ring-necked Duck
Diet	—	—
Average Lifespan	—	—
Average Length	—	—
Average Weight	—	—

Habitat & Geographic Range

Flat-headed Kusimanse

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.