Grèbe à cou noir vs Aigle royal

Podiceps nigricollis compared with Aquila chrysaetos

Key Differences

• Grèbe à cou noir is Endangered while Aigle royal is Near Threatened.

Taxonomic Classification

Rank	Grèbe à cou noir	Aigle royal
Kingdom same	Animalia (animal)	Animalia (animal)
Phylum same	Chordata (Chordates)	Chordata (Chordates)
Class same	Aves (oiseau)	Aves (oiseau)
Order	Podicipediformes (Podicipediformes)	Accipitriformes (Hawks & Eagles)
Family	Podicipedidae	Accipitridae (Hawks & Eagles)
Genus	Podiceps	Aquila (True Eagles)
Species	Podiceps nigricollis	Aquila chrysaetos

Evolutionary Relationship

Grèbe à cou noir and Aigle royal share a common ancestor at the Class level: Aves. (oiseau)

Conservation Status

Grèbe à cou noir

EN — Endangered

Aigle royal

NT — Near Threatened

Population: ~300.0K

Trend: Stable →

Physical Characteristics

Attribute	Grèbe à cou noir	Aigle royal
Diet	—	Carnivore
Average Lifespan	—	30 years
Average Length	—	85 cm
Average Weight	—	5.0 kg

Habitat & Geographic Range

Grèbe à cou noir

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.

Aigle royal

Habitat

Typically found in diverse ecosystems where prey species are available.

Range

Widely distributed across Asia (Taiwan), Europe (6 countries), and North America (United States). Listed as Near Threatened, this species requires ongoing monitoring to prevent population decline.

Grèbe à cou noir

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.

Aigle royal

Among the most powerful and widely distributed raptors in the world, golden eagles have wingspans reaching 2.2 meters and inhabit mountainous terrain across the Northern Hemisphere. Supreme aerial hunters, they use soaring flight and steep dives at speeds over 200 km/h to capture rabbits, hares, ground squirrels, and occasionally young deer and foxes. In many cultures they have been central to falconry traditions spanning millennia.

Shared Countries

Both species can be found in 6 countries:

🇧🇪 Belgium 🇩🇰 Denmark 🇳🇴 Norway 🇷🇺 Russia 🇸🇪 Sweden 🇺🇸 United States