Beach Thick-knee vs Laysan Duck

Esacus magnirostris compared with Anas laysanensis

Key Differences

Beach Thick-knee is Near Threatened while Laysan Duck is Critically Endangered.

Taxonomic Classification

Rank	Beach Thick-knee	Laysan Duck
Kingdom same	Animalia (Animals)	Animalia (Animals)
Phylum same	Chordata (Chordates)	Chordata (Chordates)
Class same	Aves (Birds)	Aves (Birds)
Order	Charadriiformes (Charadriiformes)	Anseriformes (Anseriformes)
Family	Burhinidae	Anatidae
Genus	Esacus	Anas
Species	Esacus magnirostris	Anas laysanensis

Evolutionary Relationship

Beach Thick-knee and Laysan Duck share a common ancestor at the Class level: Aves. (Birds)

View Class: Aves

Conservation Status

Beach Thick-knee

NT — Near Threatened

Laysan Duck

CR — Critically Endangered

Physical Characteristics

Attribute	Beach Thick-knee	Laysan Duck
Diet	—	—
Average Lifespan	—	—
Average Length	—	—
Average Weight	—	—

Habitat & Geographic Range

Beach Thick-knee

Habitat

Typically found in various aerial, terrestrial, and aquatic environments.

Range

Found in Norway. Listed as Near Threatened, this species requires ongoing monitoring to prevent population decline.

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.

Beach Thick-knee

The Beach Thick-knee (Esacus magnirostris) is a species in the genus Esacus. It is currently classified as Near Threatened on the IUCN Red List. Typically found in various aerial, terrestrial, and aquatic environments.

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.