Black-Necked Grebe vs Red-billed Duck

Podiceps nigricollis compared with Anas erythrorhyncha

Key Differences

• Black-Necked Grebe is Endangered while Red-billed Duck is Least Concern.

Taxonomic Classification

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

Evolutionary Relationship

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

Conservation Status

Black-Necked Grebe

EN — Endangered

Red-billed Duck

LC — Least Concern

Physical Characteristics

Attribute	Black-Necked Grebe	Red-billed Duck
Diet	—	—
Average Lifespan	—	—
Average Length	—	—
Average Weight	—	—

Habitat & Geographic Range

Black-Necked Grebe

Habitat

Found across multiple habitat types including temperate broadleaf and mixed forests, temperate coniferous forests, and boreal forests and taiga, among 8 distinct biome types within the Palearctic biogeographic realm. Populations are also found in montane and highland environments at higher elevations.

Range

Found across Europe (5 countries) and North America (United States). Currently classified as Endangered on the IUCN Red List, this species faces significant conservation challenges across its range.

Red-billed Duck

Habitat

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

Range

Found across Europe (6 countries) and South America (Ecuador).

Black-Necked Grebe

Black-Necked Grebe (Podiceps nigricollis) is classified as Endangered (EN) on the IUCN Red List. At high risk of extinction in the wild, with significant population decline and ongoing threats to survival.

Red-billed Duck

Red-billed Duck (Anas erythrorhyncha) is classified as Least Concern (LC) on the IUCN Red List. Widespread and abundant across its range, with stable populations and no immediate conservation concerns.

Shared Countries

Both species can be found in 2 countries:

🇧🇪 Belgium 🇳🇴 Norway