Canvasback vs Ring-necked Duck

Aythya valisineria compared with Aythya collaris

Key Differences

• Canvasback is Not Evaluated while Ring-necked Duck is Least Concern.

Taxonomic Classification

Rank	Canvasback	Ring-necked Duck
Kingdom same	Animalia (สัตว์)	Animalia (สัตว์)
Phylum same	Chordata (สัตว์มีแกนสันหลัง)	Chordata (สัตว์มีแกนสันหลัง)
Class same	Aves (นก)	Aves (นก)
Order same	Anseriformes (อันดับห่าน)	Anseriformes (อันดับห่าน)
Family same	Anatidae	Anatidae
Genus same	Aythya	Aythya
Species	Aythya valisineria	Aythya collaris

Evolutionary Relationship

Canvasback and Ring-necked Duck share a common ancestor at the Genus level: Aythya.

Conservation Status

Canvasback

NE — Not Evaluated

Ring-necked Duck

LC — Least Concern

Physical Characteristics

Attribute	Canvasback	Ring-necked Duck
Diet	—	—
Average Lifespan	—	—
Average Length	—	—
Average Weight	—	—

Habitat & Geographic Range

Canvasback

Habitat

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

Range

Widely distributed across Asia (Taiwan), Europe (6 countries), and North America (United States).

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).

Canvasback

Canvasback (Aythya valisineria) 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.

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.

Shared Countries

Both species can be found in 5 countries:

🇧🇪 Belgium 🇳🇴 Norway 🇸🇪 Sweden 🇹🇼 Taiwan 🇺🇸 United States