Hector’s Beaked Whale vs River Tern

Mesoplodon hectori compared with Sterna aurantia

Key Differences

• Hector’s Beaked Whale is Data Deficient while River Tern is Vulnerable.

Taxonomic Classification

Rank	Hector’s Beaked Whale	River Tern
Kingdom same	Animalia (Animals)	Animalia (Animals)
Phylum same	Chordata (Chordates)	Chordata (Chordates)
Class	Mammalia (Mammals)	Aves (Birds)
Order	Cetacea (Whales & Dolphins)	Charadriiformes (Charadriiformes)
Family	Hyperoodontidae	Laridae
Genus	Mesoplodon	Sterna
Species	Mesoplodon hectori	Sterna aurantia

Evolutionary Relationship

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

Conservation Status

Hector’s Beaked Whale

DD — Data Deficient

River Tern

VU — Vulnerable

Physical Characteristics

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

Habitat & Geographic Range

Hector’s Beaked Whale

Habitat

Typically found in diverse terrestrial and aquatic ecosystems.

River Tern

Habitat

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

Range

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