Arctic Tern vs Hector’s Beaked Whale

Sterna paradisaea compared with Mesoplodon hectori

Key Differences

• Arctic Tern is Least Concern while Hector’s Beaked Whale is Data Deficient.

Taxonomic Classification

Rank	Arctic Tern	Hector’s Beaked Whale
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	Hyperoodontidae
Genus	Sterna	Mesoplodon
Species	Sterna paradisaea	Mesoplodon hectori

Evolutionary Relationship

Arctic Tern and Hector’s Beaked Whale share a common ancestor at the Phylum level: Chordata. (Chordates)

Conservation Status

Arctic Tern

LC — Least Concern

Hector’s Beaked Whale

DD — Data Deficient

Physical Characteristics

Attribute	Arctic Tern	Hector’s Beaked Whale
Diet	—	—
Average Lifespan	—	—
Average Length	—	—
Average Weight	—	—

Habitat & Geographic Range

Arctic Tern

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).

Hector’s Beaked Whale

Habitat

Typically found in diverse terrestrial and aquatic ecosystems.

Arctic Tern

Arctic Tern (Sterna paradisaea) 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.