Greater Crested Tern vs Sandwich Tern

Thalasseus bergii compared with Thalasseus sandvicensis

Taxonomic Classification

Rank	Greater Crested Tern	Sandwich Tern
Kingdom same	Animalia (Animals)	Animalia (Animals)
Phylum same	Chordata (Chordates)	Chordata (Chordates)
Class same	Aves (Birds)	Aves (Birds)
Order same	Charadriiformes (Charadriiformes)	Charadriiformes (Charadriiformes)
Family same	Laridae	Laridae
Genus same	Thalasseus	Thalasseus
Species	Thalasseus bergii	Thalasseus sandvicensis

Evolutionary Relationship

Greater Crested Tern and Sandwich Tern share a common ancestor at the Genus level: Thalasseus.

Conservation Status

Greater Crested Tern

LC — Least Concern

Sandwich Tern

LC — Least Concern

Physical Characteristics

Attribute	Greater Crested Tern	Sandwich Tern
Diet	—	—
Average Lifespan	—	—
Average Length	—	—
Average Weight	—	—

Habitat & Geographic Range

Greater Crested Tern

Habitat

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

Range

Found in Norway.

Sandwich Tern

Habitat

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

Range

Found across Europe (4 countries) and South America (Colombia, Ecuador, Venezuela).

Sandwich Tern

Sandwich Tern (Thalasseus sandvicensis) 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 1 countries:

🇳🇴 Norway