Common Eider vs Bilou or Siamang Kerdil Mentawai

Somateria mollissima compared with Hylobates klossii

Key Differences

• Common Eider is Near Threatened while Bilou or Siamang Kerdil Mentawai is Endangered.

Taxonomic Classification

Rank	Common Eider	Bilou or Siamang Kerdil Mentawai
Kingdom same	Animalia (hewan)	Animalia (hewan)
Phylum same	Chordata (Chordates)	Chordata (Chordates)
Class	Aves (burung)	Mammalia (mamalia)
Order	Anseriformes (Anseriformes)	Primates (Primata)
Family	Anatidae	Hylobatidae
Genus	Somateria	Hylobates
Species	Somateria mollissima	Hylobates klossii

Evolutionary Relationship

Common Eider and Bilou or Siamang Kerdil Mentawai share a common ancestor at the Phylum level: Chordata. (Chordates)

Conservation Status

Common Eider

NT — Near Threatened

Bilou or Siamang Kerdil Mentawai

EN — Endangered

Physical Characteristics

Attribute	Common Eider	Bilou or Siamang Kerdil Mentawai
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.

Bilou or Siamang Kerdil Mentawai

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.