Red-billed Duck vs Ring-necked Duck

Anas erythrorhyncha compared with Aythya collaris

Taxonomic Classification

Rank	Red-billed Duck	Ring-necked Duck
Kingdom same	Animalia (Animals)	Animalia (Animals)
Phylum same	Chordata (Chordates)	Chordata (Chordates)
Class same	Aves (Birds)	Aves (Birds)
Order same	Anseriformes (Anseriformes)	Anseriformes (Anseriformes)
Family same	Anatidae	Anatidae
Genus	Anas	Aythya
Species	Anas erythrorhyncha	Aythya collaris

Evolutionary Relationship

Red-billed Duck and Ring-necked Duck share a common ancestor at the Family level: Anatidae.

Conservation Status

Red-billed Duck

LC — Least Concern

Ring-necked Duck

LC — Least Concern

Physical Characteristics

Attribute	Red-billed Duck	Ring-necked Duck
Diet	—	—
Average Lifespan	—	—
Average Length	—	—
Average Weight	—	—

Habitat & Geographic Range

Red-billed Duck

Habitat

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

Range

Found across Europe (6 countries) and South America (Ecuador).

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).

Red-billed Duck

Red-billed Duck (Anas erythrorhyncha) 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 4 countries:

🇧🇪 Belgium 🇪🇨 Ecuador 🇩🇪 Germany 🇳🇴 Norway