Black-tailed Gull vs Calderon Gris

Larus crassirostris compared with Grampus griseus

Taxonomic Classification

Rank	Black-tailed Gull	Calderon Gris
Kingdom same	Animalia (Animals)	Animalia (Animals)
Phylum same	Chordata (Chordates)	Chordata (Chordates)
Class	Aves (Birds)	Mammalia (Mammals)
Order	Charadriiformes (Charadriiformes)	Cetacea (Whales & Dolphins)
Family	Laridae	Delphinidae (Oceanic Dolphins)
Genus	Larus	Grampus
Species	Larus crassirostris	Grampus griseus

Evolutionary Relationship

Black-tailed Gull and Calderon Gris share a common ancestor at the Phylum level: Chordata. (Chordates)

Conservation Status

Black-tailed Gull

LC — Least Concern

Calderon Gris

LC — Least Concern

Physical Characteristics

Attribute	Black-tailed Gull	Calderon Gris
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.

Calderon Gris

Habitat

Typically found in diverse terrestrial and aquatic ecosystems.

Range

Widely distributed across Asia (Taiwan), Europe (4 countries), and South America (Colombia, Ecuador, Venezuela).

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.

Calderon Gris

The Calderon Gris (Grampus griseus) is a species in the genus Grampus. It is currently classified as Least Concern on the IUCN Red List. Typically found in diverse terrestrial and aquatic ecosystems.

Shared Countries

Both species can be found in 2 countries:

🇳🇴 Norway 🇹🇼 Taiwan