Chestnut Coloured Click Beetle vs Common Eider

Anostirus castaneus compared with Somateria mollissima

Key Differences

• Chestnut Coloured Click Beetle is Least Concern while Common Eider is Near Threatened.

Taxonomic Classification

Rank	Chestnut Coloured Click Beetle	Common Eider
Kingdom same	Animalia (Animals)	Animalia (Animals)
Phylum	Arthropoda (Arthropods)	Chordata (Chordates)
Class	Insecta (Insects)	Aves (Birds)
Order	Coleoptera (Beetles)	Anseriformes (Anseriformes)
Family	Elateridae	Anatidae
Genus	Anostirus	Somateria
Species	Anostirus castaneus	Somateria mollissima

Evolutionary Relationship

Chestnut Coloured Click Beetle and Common Eider share a common ancestor at the Kingdom level: Animalia. (Animals)

Conservation Status

Chestnut Coloured Click Beetle

LC — Least Concern

Common Eider

NT — Near Threatened

Physical Characteristics

Attribute	Chestnut Coloured Click Beetle	Common Eider
Diet	—	—
Average Lifespan	—	—
Average Length	—	—
Average Weight	—	—

Habitat & Geographic Range

Chestnut Coloured Click Beetle

Habitat

Typically found in virtually all terrestrial and freshwater habitats.

Range

Distributed across Belgium, Denmark, Norway, Sweden, and Switzerland.

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.

Chestnut Coloured Click Beetle

The Chestnut Coloured Click Beetle (Anostirus castaneus) is a species in the genus Anostirus. It is currently classified as Least Concern on the IUCN Red List. Typically found in virtually all terrestrial and freshwater habitats.

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 4 countries:

🇧🇪 Belgium 🇩🇰 Denmark 🇳🇴 Norway 🇸🇪 Sweden