Chestnut-breasted Whiteface vs Common Eider

Aphelocephala pectoralis compared with Somateria mollissima

Taxonomic Classification

Rank	Chestnut-breasted Whiteface	Common Eider
Kingdom same	Animalia (Animals)	Animalia (Animals)
Phylum same	Chordata (Chordates)	Chordata (Chordates)
Class same	Aves (Birds)	Aves (Birds)
Order	Passeriformes (Songbirds)	Anseriformes (Anseriformes)
Family	Acanthizidae	Anatidae
Genus	Aphelocephala	Somateria
Species	Aphelocephala pectoralis	Somateria mollissima

Evolutionary Relationship

Chestnut-breasted Whiteface and Common Eider share a common ancestor at the Class level: Aves. (Birds)

Conservation Status

Chestnut-breasted Whiteface

NT — Near Threatened

Common Eider

NT — Near Threatened

Physical Characteristics

Attribute	Chestnut-breasted Whiteface	Common Eider
Diet	—	—
Average Lifespan	—	—
Average Length	—	—
Average Weight	—	—

Habitat & Geographic Range

Chestnut-breasted Whiteface

Habitat

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

Range

Found in Norway. Listed as Near Threatened, this species requires ongoing monitoring to prevent population decline.

Common Eider

Habitat

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

Range

Found across Europe (5 countries) and North America (United States). Listed as Near Threatened, this species requires ongoing monitoring to prevent population decline.

Chestnut-breasted Whiteface

The Chestnut-breasted Whiteface (Aphelocephala pectoralis) is a species in the genus Aphelocephala. It is currently classified as Near Threatened on the IUCN Red List. Typically found in various aerial, terrestrial, and aquatic environments.

Common Eider

Common Eider (Somateria mollissima) is classified as Near Threatened (NT) on the IUCN Red List. Close to qualifying as threatened, with populations that may become vulnerable without conservation action.

Shared Countries

Both species can be found in 1 countries:

🇳🇴 Norway