Glaucous-winged Gull vs Great Black-backed Gull

Larus glaucescens compared with Larus marinus

Key Differences

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

Taxonomic Classification

Rank	Glaucous-winged Gull	Great Black-backed Gull
Kingdom same	Animalia (สัตว์)	Animalia (สัตว์)
Phylum same	Chordata (สัตว์มีแกนสันหลัง)	Chordata (สัตว์มีแกนสันหลัง)
Class same	Aves (นก)	Aves (นก)
Order same	Charadriiformes (Charadriiformes)	Charadriiformes (Charadriiformes)
Family same	Laridae	Laridae
Genus same	Larus	Larus
Species	Larus glaucescens	Larus marinus

Evolutionary Relationship

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

Conservation Status

Glaucous-winged Gull

NE — Not Evaluated

Great Black-backed Gull

LC — Least Concern

Physical Characteristics

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

Habitat & Geographic Range

Glaucous-winged Gull

Habitat

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

Range

Distributed across Denmark, Ecuador, and Norway.

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).

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 2 countries:

🇩🇰 Denmark 🇳🇴 Norway