Goéland à queue noire vs Goéland à bec cerclé

Larus crassirostris compared with Larus delawarensis

Taxonomic Classification

Rank	Goéland à queue noire	Goéland à bec cerclé
Kingdom same	Animalia (animal)	Animalia (animal)
Phylum same	Chordata (Chordates)	Chordata (Chordates)
Class same	Aves (oiseau)	Aves (oiseau)
Order same	Charadriiformes (Charadriiformes)	Charadriiformes (Charadriiformes)
Family same	Laridae	Laridae
Genus same	Larus	Larus
Species	Larus crassirostris	Larus delawarensis

Evolutionary Relationship

Goéland à queue noire and Goéland à bec cerclé share a common ancestor at the Genus level: Larus.

Conservation Status

Goéland à queue noire

LC — Least Concern

Goéland à bec cerclé

LC — Least Concern

Physical Characteristics

Attribute	Goéland à queue noire	Goéland à bec cerclé
Diet	—	—
Average Lifespan	—	—
Average Length	—	—
Average Weight	—	—

Habitat & Geographic Range

Goéland à queue noire

Habitat

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

Range

Distributed across Norway, Taiwan, and United States.

Goéland à bec cerclé

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, Ecuador, Venezuela).

Goéland à queue noire

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.

Goéland à bec cerclé

Ring-billed Gull (Larus delawarensis) 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:

🇳🇴 Norway 🇺🇸 United States