Lesser Scaup vs Ring-necked Duck

Aythya affinis compared with Aythya collaris

Taxonomic Classification

Rank	Lesser Scaup	Ring-necked Duck
Kingdom same	Animalia (động vật)	Animalia (động vật)
Phylum same	Chordata (động vật có dây sống)	Chordata (động vật có dây sống)
Class same	Aves (chim)	Aves (chim)
Order same	Anseriformes (bộ Ngỗng)	Anseriformes (bộ Ngỗng)
Family same	Anatidae	Anatidae
Genus same	Aythya	Aythya
Species	Aythya affinis	Aythya collaris

Evolutionary Relationship

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

Conservation Status

Lesser Scaup

LC — Least Concern

Ring-necked Duck

LC — Least Concern

Physical Characteristics

Attribute	Lesser Scaup	Ring-necked Duck
Diet	—	—
Average Lifespan	—	—
Average Length	—	—
Average Weight	—	—

Habitat & Geographic Range

Lesser Scaup

Habitat

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

Range

Widely distributed across Asia (Taiwan), Europe (4 countries), North America (United States), and South America (Colombia, Ecuador, Venezuela).

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).

Lesser Scaup

Lesser Scaup (Aythya affinis) 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.

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 9 countries:

🇧🇪 Belgium 🇨🇴 Colombia 🇩🇰 Denmark 🇪🇨 Ecuador 🇳🇴 Norway 🇸🇪 Sweden 🇹🇼 Taiwan 🇺🇸 United States 🇻🇪 Venezuela