Black-bellied Tern vs Red-billed Duck

Sterna acuticauda compared with Anas erythrorhyncha

Key Differences

• Black-bellied Tern is Endangered while Red-billed Duck is Least Concern.

Taxonomic Classification

Rank	Black-bellied Tern	Red-billed Duck
Kingdom same	Animalia (Animals)	Animalia (Animals)
Phylum same	Chordata (Chordates)	Chordata (Chordates)
Class same	Aves (Birds)	Aves (Birds)
Order	Charadriiformes (Charadriiformes)	Anseriformes (Anseriformes)
Family	Laridae	Anatidae
Genus	Sterna	Anas
Species	Sterna acuticauda	Anas erythrorhyncha

Evolutionary Relationship

Black-bellied Tern and Red-billed Duck share a common ancestor at the Class level: Aves. (Birds)

Conservation Status

Black-bellied Tern

EN — Endangered

Red-billed Duck

LC — Least Concern

Physical Characteristics

Attribute	Black-bellied Tern	Red-billed Duck
Diet	—	—
Average Lifespan	—	—
Average Length	—	—
Average Weight	—	—

Habitat & Geographic Range

Black-bellied Tern

Habitat

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

Range

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

Red-billed Duck

Habitat

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

Range

Found across Europe (6 countries) and South America (Ecuador).

Black-bellied Tern

The Black-bellied Tern (Sterna acuticauda) is a species in the genus Sterna. It is currently classified as Endangered on the IUCN Red List. Typically found in various aerial, terrestrial, and aquatic environments.

Red-billed Duck

Red-billed Duck (Anas erythrorhyncha) 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.

Shared Countries

Both species can be found in 1 countries:

🇳🇴 Norway