Great Black-backed Gull vs Slaty-backed Gull

Larus marinus compared with Larus schistisagus

Key Differences

• Great Black-backed Gull is Least Concern while Slaty-backed Gull is Not Evaluated.

Taxonomic Classification

Rank	Great Black-backed Gull	Slaty-backed Gull
Kingdom same	Animalia (Animals)	Animalia (Animals)
Phylum same	Chordata (Chordates)	Chordata (Chordates)
Class same	Aves (Birds)	Aves (Birds)
Order same	Charadriiformes (Charadriiformes)	Charadriiformes (Charadriiformes)
Family same	Laridae	Laridae
Genus same	Larus	Larus
Species	Larus marinus	Larus schistisagus

Evolutionary Relationship

Great Black-backed Gull and Slaty-backed Gull share a common ancestor at the Genus level: Larus.

Conservation Status

Great Black-backed Gull

LC — Least Concern

Slaty-backed Gull

NE — Not Evaluated

Physical Characteristics

Attribute	Great Black-backed Gull	Slaty-backed Gull
Diet	—	—
Average Lifespan	—	—
Average Length	—	—
Average Weight	—	—

Habitat & Geographic Range

Great Black-backed Gull

Habitat

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

Range

Widely distributed across Europe (4 countries), North America (United States), and South America (Colombia).

Slaty-backed Gull

Habitat

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

Range

Distributed across Norway, Sweden, Taiwan, and United States.

Great Black-backed Gull

Great Black-backed Gull (Larus marinus) 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 3 countries:

🇳🇴 Norway 🇸🇪 Sweden 🇺🇸 United States