Red-billed Duck vs Whiskered Tern

Anas erythrorhyncha compared with Chlidonias hybrida

Key Differences

• Red-billed Duck is Least Concern while Whiskered Tern is Not Evaluated.

Taxonomic Classification

Rank	Red-billed Duck	Whiskered 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	Chlidonias
Species	Anas erythrorhyncha	Chlidonias hybrida

Evolutionary Relationship

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

Conservation Status

Red-billed Duck

LC — Least Concern

Whiskered Tern

NE — Not Evaluated

Physical Characteristics

Attribute	Red-billed Duck	Whiskered 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).

Whiskered Tern

Habitat

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

Range

Distributed across Belgium, Denmark, Norway, and Sweden.

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 2 countries:

🇧🇪 Belgium 🇳🇴 Norway