Alpine Sulphur-Tresses vs Common Eider

Alectoria ochroleuca compared with Somateria mollissima

Key Differences

• Alpine Sulphur-Tresses is Least Concern while Common Eider is Near Threatened.

Taxonomic Classification

Rank	Alpine Sulphur-Tresses	Common Eider
Kingdom	Fungi (Fungi)	Animalia (Animals)
Phylum	Ascomycota (Sac Fungi)	Chordata (Chordates)
Class	Lecanoromycetes (Lecanoromycetes)	Aves (Birds)
Order	Lecanorales (Lecanorales)	Anseriformes (Anseriformes)
Family	Parmeliaceae	Anatidae
Genus	Alectoria	Somateria
Species	Alectoria ochroleuca	Somateria mollissima

Conservation Status

Alpine Sulphur-Tresses

LC — Least Concern

Common Eider

NT — Near Threatened

Physical Characteristics

Attribute	Alpine Sulphur-Tresses	Common Eider
Diet	—	—
Average Lifespan	—	—
Average Length	—	—
Average Weight	—	—

Habitat & Geographic Range

Alpine Sulphur-Tresses

Habitat

Native to Europe and North America and South America, inhabiting ecosystems characteristic of the region.

Range

Distributed across Colombia, Norway, Sweden, and United States.

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.

Alpine Sulphur-Tresses

The Alpine Sulphur-Tresses (Alectoria ochroleuca) is a species in the genus Alectoria. It is currently classified as Least Concern on the IUCN Red List. Native to Europe and North America and South America, inhabiting ecosystems characteristic of the region. Distributed across Colombia, Norway, Sweden, and United States.

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 3 countries:

🇳🇴 Norway 🇸🇪 Sweden 🇺🇸 United States