Grèbe à cou noir vs Rat surmulot

Podiceps nigricollis compared with Rattus norvegicus

Key Differences

• Grèbe à cou noir is Endangered while Rat surmulot is Least Concern.

Taxonomic Classification

Rank	Grèbe à cou noir	Rat surmulot
Kingdom same	Animalia (animal)	Animalia (animal)
Phylum same	Chordata (Chordates)	Chordata (Chordates)
Class	Aves (oiseau)	Mammalia (mammifères)
Order	Podicipediformes (Podicipediformes)	Rodentia (Rodents)
Family	Podicipedidae	Muridae (Mice & Rats)
Genus	Podiceps	Rattus
Species	Podiceps nigricollis	Rattus norvegicus

Evolutionary Relationship

Grèbe à cou noir and Rat surmulot share a common ancestor at the Phylum level: Chordata. (Chordates)

Conservation Status

Grèbe à cou noir

EN — Endangered

Rat surmulot

LC — Least Concern

Physical Characteristics

Attribute	Grèbe à cou noir	Rat surmulot
Diet	—	—
Average Lifespan	—	—
Average Length	—	—
Average Weight	—	—

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.

Rat surmulot

Habitat

Found across multiple habitat types including tropical and subtropical moist broadleaf forests, tropical and subtropical dry broadleaf forests, and tropical and subtropical grasslands and savannas, among 10 distinct biome types. Populations are also found in montane and highland environments at higher elevations.

Range

Widely distributed across Africa (11 countries), Asia (15 countries), Europe (41 countries), North America (16 countries), Oceania and the Pacific (10 countries), and South America (10 countries).

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.

Rat surmulot

Brown Rat (Rattus norvegicus) 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 6 countries:

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