King/Common Eider vs Red-billed Duck

Somateria spectabilis compared with Anas erythrorhyncha

Key Differences

• King/Common Eider is Not Evaluated while Red-billed Duck is Least Concern.

Taxonomic Classification

Rank	King/Common Eider	Red-billed 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	Somateria	Anas
Species	Somateria spectabilis	Anas erythrorhyncha

Evolutionary Relationship

King/Common Eider and Red-billed Duck share a common ancestor at the Family level: Anatidae.

Conservation Status

King/Common Eider

NE — Not Evaluated

Red-billed Duck

LC — Least Concern

Physical Characteristics

Attribute	King/Common Eider	Red-billed Duck
Diet	—	—
Average Lifespan	—	—
Average Length	—	—
Average Weight	—	—

Habitat & Geographic Range

King/Common Eider

Habitat

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

Range

Distributed across Belgium, Denmark, Norway, Sweden, and United States.

Red-billed Duck

Habitat

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

Range

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

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.

Shared Countries

Both species can be found in 2 countries:

🇧🇪 Belgium 🇳🇴 Norway