Alpine Sulphur-Tresses vs Laysan Duck

Alectoria ochroleuca compared with Anas laysanensis

Key Differences

Alpine Sulphur-Tresses is Least Concern while Laysan Duck is Critically Endangered.

Taxonomic Classification

Rank	Alpine Sulphur-Tresses	Laysan Duck
Kingdom	Fungi (فطر)	Animalia (حيوانات)
Phylum	Ascomycota (فطريات زقية)	Chordata (حبليات)
Class	Lecanoromycetes (لقنورانية)	Aves (طيور)
Order	Lecanorales (لقنوريات)	Anseriformes (إوزيات)
Family	Parmeliaceae	Anatidae
Genus	Alectoria	Anas
Species	Alectoria ochroleuca	Anas laysanensis

Conservation Status

Alpine Sulphur-Tresses

LC — Least Concern

Laysan Duck

CR — Critically Endangered

Physical Characteristics

Attribute	Alpine Sulphur-Tresses	Laysan Duck
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.

Laysan Duck

Habitat

Found across multiple habitat types including temperate broadleaf and mixed forests, temperate coniferous forests, and Mediterranean forests and woodlands within the Palearctic biogeographic realm. Populations are also found in montane and highland environments at higher elevations.

Range

Distributed across Belgium, France, Netherlands, Norway, and United Kingdom. Currently classified as Critically Endangered on the IUCN Red List, this species faces significant conservation challenges across its range.

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.

Laysan Duck

Laysan Duck (Anas laysanensis) is classified as Critically Endangered (CR) on the IUCN Red List. Facing an extremely high risk of extinction in the wild due to severe population decline and habitat loss.