Black-tailed Gull vs Great Black-backed Gull

Larus crassirostris compared with Larus marinus

Taxonomic Classification

Rank	Black-tailed Gull	Great Black-backed Gull
Kingdom same	Animalia (동물)	Animalia (동물)
Phylum same	Chordata (척삭동물)	Chordata (척삭동물)
Class same	Aves (새)	Aves (새)
Order same	Charadriiformes (도요목)	Charadriiformes (도요목)
Family same	Laridae	Laridae
Genus same	Larus	Larus
Species	Larus crassirostris	Larus marinus

Evolutionary Relationship

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

Conservation Status

Black-tailed Gull

LC — Least Concern

Great Black-backed Gull

LC — Least Concern

Physical Characteristics

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

Habitat & Geographic Range

Black-tailed Gull

Habitat

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

Range

Distributed across Norway, Taiwan, and United States.

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).

Black-tailed Gull

The Black-tailed Gull (Larus crassirostris) is a species in the genus Larus. It is currently classified as Least Concern on the IUCN Red List. Distributed across Norway, Taiwan, and United States.

Great Black-backed Gull

큰검은등갈매기(Larus marinus)는 IUCN 적색목록에서 최소관심종(LC)으로 분류됩니다. 서식 범위 전역에서 널리 분포하며 개체군이 안정적으로 유지되고 있어 즉각적인 보전 우려는 없습니다.

Shared Countries

Both species can be found in 2 countries:

🇳🇴 Norway 🇺🇸 United States