Black-fronted Tern vs Calderon Gris

Chlidonias albostriatus compared with Grampus griseus

Key Differences

• Black-fronted Tern is Endangered while Calderon Gris is Least Concern.

Taxonomic Classification

Rank	Black-fronted Tern	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	Chlidonias	Grampus
Species	Chlidonias albostriatus	Grampus griseus

Evolutionary Relationship

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

Conservation Status

Black-fronted Tern

EN — Endangered

Calderon Gris

LC — Least Concern

Physical Characteristics

Attribute	Black-fronted Tern	Calderon Gris
Diet	—	—
Average Lifespan	—	—
Average Length	—	—
Average Weight	—	—

Habitat & Geographic Range

Black-fronted Tern

Habitat

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

Range

Found in Norway. Currently classified as Endangered on the IUCN Red List, this species faces significant conservation challenges across its range.

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-fronted Tern

The Black-fronted Tern (Chlidonias albostriatus) is a species in the genus Chlidonias. It is currently classified as Endangered on the IUCN Red List. Typically found in various aerial, terrestrial, and aquatic environments.

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 1 countries:

🇳🇴 Norway