Laysan Duck vs

Anas laysanensis compared with Trichormus variabilis

Key Differences

Laysan Duck is Critically Endangered while is Not Evaluated.

Taxonomic Classification

Rank	Laysan Duck
Kingdom	Animalia (Animals)	Bacteria (Bacteria)
Phylum	Chordata (Chordates)	Cyanobacteria (Cyanobacteria)
Class	Aves (Birds)	Cyanobacteriia
Order	Anseriformes (Anseriformes)	Cyanobacteriales
Family	Anatidae	Nostocaceae
Genus	Anas	Trichormus
Species	Anas laysanensis	Trichormus variabilis

Conservation Status

Laysan Duck

CR — Critically Endangered

NE — Not Evaluated

Physical Characteristics

Attribute	Laysan Duck
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.

Habitat

Native to Europe, inhabiting ecosystems characteristic of the region.

Range

Distributed across Denmark, Norway, and Sweden.

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.

Trichormus variabilis is a filamentous, nitrogen-fixing cyanobacterium in the family Nostocaceae. It forms heterocysts — specialized nitrogen-fixing cells — within its trichomes and is found in freshwater, soil, and symbiotic associations. Its conservation status is not evaluated.