Common Tern vs Eden's whale

Sterna hirundo compared with Balaenoptera edeni

Key Differences

Common Tern is Endangered while Eden's whale is Data Deficient.

Taxonomic Classification

Rank	Common Tern	Eden's 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	Balaenopteridae (Rorquals)
Genus	Sterna	Balaenoptera (Rorquals)
Species	Sterna hirundo	Balaenoptera edeni

Evolutionary Relationship

Common Tern and Eden's whale share a common ancestor at the Phylum level: Chordata. (Chordates)

View Phylum: Chordata

Conservation Status

Common Tern

EN — Endangered

Eden's whale

DD — Data Deficient

Physical Characteristics

Attribute	Common Tern	Eden's whale
Diet	—	—
Average Lifespan	—	—
Average Length	—	—
Average Weight	—	—

Habitat & Geographic Range

Common Tern

Habitat

Found across multiple habitat types including tropical and subtropical dry broadleaf forests, flooded grasslands and savannas, and montane grasslands and shrublands, among 9 distinct biome types spanning the Neotropic and Palearctic realms. Populations are also found in montane and highland environments at higher elevations.

Range

Widely distributed across Europe (7 countries), North America (United States), and South America (Colombia, Ecuador, Venezuela). Currently classified as Endangered on the IUCN Red List, this species faces significant conservation challenges across its range.

Eden's whale

Habitat

Typically found in diverse terrestrial and aquatic ecosystems.

Range

Widely distributed across Asia (Taiwan), Europe (Denmark, Norway), and South America (Colombia, Ecuador, Venezuela).

Common Tern

Common Tern (Sterna hirundo) is classified as Endangered (EN) on the IUCN Red List. At high risk of extinction in the wild, with significant population decline and ongoing threats to survival.