Laysan Duck vs lizard crystalwort

Anas laysanensis compared with Riccia bifurca

Key Differences

Laysan Duck is Critically Endangered while lizard crystalwort is Endangered.

Taxonomic Classification

Rank	Laysan Duck	lizard crystalwort
Kingdom	Animalia (Animals)	Plantae (Plants)
Phylum	Chordata (Chordates)	Marchantiophyta (liverwort)
Class	Aves (Birds)	Marchantiopsida (Marchantiopsida)
Order	Anseriformes (Anseriformes)	Marchantiales (Marchantiales)
Family	Anatidae	Ricciaceae
Genus	Anas	Riccia
Species	Anas laysanensis	Riccia bifurca

Conservation Status

Laysan Duck

CR — Critically Endangered

lizard crystalwort

EN — Endangered

Physical Characteristics

Attribute	Laysan Duck	lizard crystalwort
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.

lizard crystalwort

Habitat

Found across multiple habitat types including temperate broadleaf and mixed forests, tundra, and tropical and subtropical moist broadleaf forests spanning the Australasia and Oceanian realms.

Range

Widely distributed across Europe (5 countries), North America (United States), and Oceania and the Pacific (New Zealand). Currently classified as Endangered 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.