Laysan Duck vs Tiered Tooth

Anas laysanensis compared with Hericium cirrhatum

Key Differences

Laysan Duck is Critically Endangered while Tiered Tooth is Vulnerable.

Taxonomic Classification

Rank	Laysan Duck	Tiered Tooth
Kingdom	Animalia (Animals)	Fungi (Fungi)
Phylum	Chordata (Chordates)	Basidiomycota (Club Fungi)
Class	Aves (Birds)	Agaricomycetes (Mushrooms)
Order	Anseriformes (Anseriformes)	Russulales (Russulales)
Family	Anatidae	Hericiaceae
Genus	Anas	Hericium
Species	Anas laysanensis	Hericium cirrhatum

Conservation Status

Laysan Duck

CR — Critically Endangered

Tiered Tooth

VU — Vulnerable

Physical Characteristics

Attribute	Laysan Duck	Tiered Tooth
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.

Tiered Tooth

Habitat

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

Range

Distributed across Belgium, Denmark, Norway, and Sweden. Currently classified as Vulnerable on the IUCN Red List, this species faces significant conservation challenges across its range.

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.