Laysan Duck vs Red-Necked Grebe

Anas laysanensis compared with Podiceps grisegena

Key Differences

• Laysan Duck is Critically Endangered while Red-Necked Grebe is Not Evaluated.

Taxonomic Classification

Rank	Laysan Duck	Red-Necked Grebe
Kingdom same	Animalia (Animals)	Animalia (Animals)
Phylum same	Chordata (Chordates)	Chordata (Chordates)
Class same	Aves (Birds)	Aves (Birds)
Order	Anseriformes (Anseriformes)	Podicipediformes (Podicipediformes)
Family	Anatidae	Podicipedidae
Genus	Anas	Podiceps
Species	Anas laysanensis	Podiceps grisegena

Evolutionary Relationship

Laysan Duck and Red-Necked Grebe share a common ancestor at the Class level: Aves. (Birds)

Conservation Status

Laysan Duck

CR — Critically Endangered

Red-Necked Grebe

NE — Not Evaluated

Physical Characteristics

Attribute	Laysan Duck	Red-Necked Grebe
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.

Red-Necked Grebe

Habitat

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

Range

Found across Europe (5 countries) and North America (United States).

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.

Red-Necked Grebe

Red-Necked Grebe (Podiceps grisegena) is classified as Not Evaluated (NE) on the IUCN Red List. Not yet evaluated against IUCN Red List criteria. Conservation status remains to be determined.

Shared Countries

Both species can be found in 2 countries:

🇧🇪 Belgium 🇳🇴 Norway