Common Eider vs North American least shrew

Somateria mollissima compared with Cryptotis parva

Key Differences

• Common Eider is Near Threatened while North American least shrew is Least Concern.

Taxonomic Classification

Rank	Common Eider	North American least shrew
Kingdom same	Animalia (Animals)	Animalia (Animals)
Phylum same	Chordata (Chordates)	Chordata (Chordates)
Class	Aves (Birds)	Mammalia (Mammals)
Order	Anseriformes (Anseriformes)	Soricomorpha (Soricomorpha)
Family	Anatidae	Soricidae
Genus	Somateria	Cryptotis
Species	Somateria mollissima	Cryptotis parva

Evolutionary Relationship

Common Eider and North American least shrew share a common ancestor at the Phylum level: Chordata. (Chordates)

Conservation Status

Common Eider

NT — Near Threatened

North American least shrew

LC — Least Concern

Physical Characteristics

Attribute	Common Eider	North American least shrew
Diet	—	—
Average Lifespan	—	—
Average Length	—	—
Average Weight	—	—

Habitat & Geographic Range

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.

North American least shrew

Habitat

Typically found in diverse terrestrial and aquatic ecosystems.

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.