Black-tailed Gull vs Glaucous Gull

Larus crassirostris compared with Larus hyperboreus

Key Differences

• Black-tailed Gull is Least Concern while Glaucous Gull is Not Evaluated.

Taxonomic Classification

Rank	Black-tailed Gull	Glaucous Gull
Kingdom same	Animalia (động vật)	Animalia (động vật)
Phylum same	Chordata (động vật có dây sống)	Chordata (động vật có dây sống)
Class same	Aves (chim)	Aves (chim)
Order same	Charadriiformes (Bộ Choi choi)	Charadriiformes (Bộ Choi choi)
Family same	Laridae	Laridae
Genus same	Larus	Larus
Species	Larus crassirostris	Larus hyperboreus

Evolutionary Relationship

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

Conservation Status

Black-tailed Gull

LC — Least Concern

Glaucous Gull

NE — Not Evaluated

Physical Characteristics

Attribute	Black-tailed Gull	Glaucous 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.

Glaucous Gull

Habitat

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

Range

Distributed across Belgium, Denmark, Norway, Sweden, and United States.

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.

Shared Countries

Both species can be found in 2 countries:

🇳🇴 Norway 🇺🇸 United States