Haviside s Dolphin vs River Tern

Cephalorhynchus heavisidii compared with Sterna aurantia

Key Differences

• Haviside s Dolphin is Near Threatened while River Tern is Vulnerable.

Taxonomic Classification

Rank	Haviside s Dolphin	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	Delphinidae (Oceanic Dolphins)	Laridae
Genus	Cephalorhynchus	Sterna
Species	Cephalorhynchus heavisidii	Sterna aurantia

Evolutionary Relationship

Haviside s Dolphin and River Tern share a common ancestor at the Phylum level: Chordata. (Chordates)

Conservation Status

Haviside s Dolphin

NT — Near Threatened

River Tern

VU — Vulnerable

Physical Characteristics

Attribute	Haviside s Dolphin	River Tern
Diet	—	—
Average Lifespan	—	—
Average Length	—	—
Average Weight	—	—

Habitat & Geographic Range

Haviside s Dolphin

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.