Red-billed Duck vs Snowy-crowned Tern

Anas erythrorhyncha compared with Sterna trudeaui

Taxonomic Classification

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

Evolutionary Relationship

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

Conservation Status

Red-billed Duck

LC — Least Concern

Snowy-crowned Tern

LC — Least Concern

Physical Characteristics

Attribute	Red-billed Duck	Snowy-crowned Tern
Diet	—	—
Average Lifespan	—	—
Average Length	—	—
Average Weight	—	—

Habitat & Geographic Range

Red-billed Duck

Habitat

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

Range

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

Snowy-crowned Tern

Habitat

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

Range

Found in Norway.

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