Common Eider vs Lesser Cachalot

Somateria mollissima compared with Kogia breviceps

Key Differences

• Common Eider is Near Threatened while Lesser Cachalot is Data Deficient.

Taxonomic Classification

Rank	Common Eider	Lesser Cachalot
Kingdom same	Animalia (สัตว์)	Animalia (สัตว์)
Phylum same	Chordata (สัตว์มีแกนสันหลัง)	Chordata (สัตว์มีแกนสันหลัง)
Class	Aves (นก)	Mammalia (สัตว์เลี้ยงลูกด้วยน้ำนม)
Order	Anseriformes (อันดับห่าน)	Cetacea (Whales & Dolphins)
Family	Anatidae	Kogiidae
Genus	Somateria	Kogia
Species	Somateria mollissima	Kogia breviceps

Evolutionary Relationship

Common Eider and Lesser Cachalot share a common ancestor at the Phylum level: Chordata. (สัตว์มีแกนสันหลัง)

Conservation Status

Common Eider

NT — Near Threatened

Lesser Cachalot

DD — Data Deficient

Physical Characteristics

Attribute	Common Eider	Lesser Cachalot
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.

Lesser Cachalot

Habitat

Typically found in diverse terrestrial and aquatic ecosystems.

Range

Distributed across Colombia, Ecuador, Portugal, Sweden, and Taiwan.

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:

🇸🇪 Sweden