Laysan Duck vs Sieva bean

Anas laysanensis compared with Phaseolus lunatus

Key Differences

• Laysan Duck is Critically Endangered while Sieva bean is Least Concern.

Taxonomic Classification

Rank	Laysan Duck	Sieva bean
Kingdom	Animalia (Animals)	Plantae (Plants)
Phylum	Chordata (Chordates)	Magnoliophyta (Flowering Plants)
Class	Aves (Birds)	Magnoliopsida (Dicots)
Order	Anseriformes (Anseriformes)	Fabales (Legumes & Allies)
Family	Anatidae	Fabaceae
Genus	Anas	Phaseolus
Species	Anas laysanensis	Phaseolus lunatus

Conservation Status

Laysan Duck

CR — Critically Endangered

Sieva bean

LC — Least Concern

Physical Characteristics

Attribute	Laysan Duck	Sieva bean
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.

Sieva bean

Habitat

Found across multiple habitat types including tropical and subtropical moist broadleaf forests, flooded grasslands and savannas, and montane grasslands and shrublands within the Afrotropic biogeographic realm. Populations are also found in montane and highland environments at higher elevations.

Range

Widely distributed across Africa (20 countries), Asia (Philippines, Taiwan), Europe (Spain), North America (5 countries), Oceania and the Pacific (7 countries), and South America (5 countries).

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.