Laysan Duck vs Rosy Crust

Anas laysanensis compared with Peniophora incarnata

Key Differences

Laysan Duck is Critically Endangered while Rosy Crust is Least Concern.

Taxonomic Classification

Rank	Laysan Duck	Rosy Crust
Kingdom	Animalia (Animals)	Fungi (Fungi)
Phylum	Chordata (Chordates)	Basidiomycota (Club Fungi)
Class	Aves (Birds)	Agaricomycetes (Mushrooms)
Order	Anseriformes (Anseriformes)	Russulales (Russulales)
Family	Anatidae	Peniophoraceae
Genus	Anas	Peniophora
Species	Anas laysanensis	Peniophora incarnata

Conservation Status

Laysan Duck

CR — Critically Endangered

Rosy Crust

LC — Least Concern

Physical Characteristics

Attribute	Laysan Duck	Rosy Crust
Diet	—	—
Average Lifespan	—	—
Average Length	—	—
Average Weight	—	—

Habitat & Geographic Range

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.

Rosy Crust

Habitat

Typically found in forest floors, decomposing wood, and soil ecosystems.

Range

Widely distributed across Asia (Taiwan), Europe (5 countries), North America (United States), and South America (Brazil).

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.