Greater Copperwort vs Laysan Duck

Cephaloziella nicholsonii compared with Anas laysanensis

Key Differences

• Greater Copperwort is Endangered while Laysan Duck is Critically Endangered.

Taxonomic Classification

Rank	Greater Copperwort	Laysan Duck
Kingdom	Plantae (Plants)	Animalia (Animals)
Phylum	Marchantiophyta (liverwort)	Chordata (Chordates)
Class	Jungermanniopsida (Jungermanniopsida)	Aves (Birds)
Order	Jungermanniales (Jungermanniales)	Anseriformes (Anseriformes)
Family	Cephaloziellaceae	Anatidae
Genus	Cephaloziella	Anas
Species	Cephaloziella nicholsonii	Anas laysanensis

Conservation Status

Greater Copperwort

EN — Endangered

Laysan Duck

CR — Critically Endangered

Physical Characteristics

Attribute	Greater Copperwort	Laysan Duck
Diet	—	—
Average Lifespan	—	—
Average Length	—	—
Average Weight	—	—

Habitat & Geographic Range

Greater Copperwort

Habitat

Native to Europe, inhabiting ecosystems characteristic of the region.

Range

Found in Norway. Currently classified as Endangered on the IUCN Red List, this species faces significant conservation challenges across its 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.

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.

Shared Countries

Both species can be found in 1 countries:

🇳🇴 Norway