Least Tern vs Peruvian Tern

Sternula antillarum compared with Sternula lorata

Key Differences

• Least Tern is Least Concern while Peruvian Tern is Endangered.

Taxonomic Classification

Rank	Least Tern	Peruvian Tern
Kingdom same	Animalia (สัตว์)	Animalia (สัตว์)
Phylum same	Chordata (สัตว์มีแกนสันหลัง)	Chordata (สัตว์มีแกนสันหลัง)
Class same	Aves (นก)	Aves (นก)
Order same	Charadriiformes (Charadriiformes)	Charadriiformes (Charadriiformes)
Family same	Laridae	Laridae
Genus same	Sternula	Sternula
Species	Sternula antillarum	Sternula lorata

Evolutionary Relationship

Least Tern and Peruvian Tern share a common ancestor at the Genus level: Sternula.

Conservation Status

Least Tern

LC — Least Concern

Peruvian Tern

EN — Endangered

Physical Characteristics

Attribute	Least Tern	Peruvian Tern
Diet	—	—
Average Lifespan	—	—
Average Length	—	—
Average Weight	—	—

Habitat & Geographic Range

Least Tern

Habitat

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

Range

Distributed across Colombia, Ecuador, Norway, and Venezuela.

Peruvian Tern

Habitat

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

Range

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

Shared Countries

Both species can be found in 2 countries:

🇪🇨 Ecuador 🇳🇴 Norway