Common Eider vs Perija Small-eared Shrew

Somateria mollissima compared with Cryptotis perijensis

Key Differences

• Common Eider is Near Threatened while Perija Small-eared Shrew is Data Deficient.

Taxonomic Classification

Rank	Common Eider	Perija Small-eared 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 perijensis

Evolutionary Relationship

Common Eider and Perija Small-eared Shrew share a common ancestor at the Phylum level: Chordata. (Chordates)

Conservation Status

Common Eider

NT — Near Threatened

Perija Small-eared Shrew

DD — Data Deficient

Physical Characteristics

Attribute	Common Eider	Perija Small-eared 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.

Perija Small-eared Shrew

Habitat

Typically found in diverse terrestrial and aquatic ecosystems.

Range

Found in Colombia.

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.