Common Eider vs East Asian Free-tailed Bat

Somateria mollissima compared with Tadarida insignis

Key Differences

• Common Eider is Near Threatened while East Asian Free-tailed Bat is Data Deficient.

Taxonomic Classification

Rank	Common Eider	East Asian Free-tailed Bat
Kingdom same	Animalia (động vật)	Animalia (động vật)
Phylum same	Chordata (động vật có dây sống)	Chordata (động vật có dây sống)
Class	Aves (chim)	Mammalia (lớp Thú)
Order	Anseriformes (bộ Ngỗng)	Chiroptera (bộ Dơi)
Family	Anatidae	Molossidae
Genus	Somateria	Tadarida
Species	Somateria mollissima	Tadarida insignis

Evolutionary Relationship

Common Eider and East Asian Free-tailed Bat share a common ancestor at the Phylum level: Chordata. (động vật có dây sống)

Conservation Status

Common Eider

NT — Near Threatened

East Asian Free-tailed Bat

DD — Data Deficient

Physical Characteristics

Attribute	Common Eider	East Asian Free-tailed Bat
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.

East Asian Free-tailed Bat

Habitat

Typically found in diverse terrestrial and aquatic ecosystems.

Range

Found in 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.