Red-billed Duck vs Ridgway's Rail

Anas erythrorhyncha compared with Rallus obsoletus

Key Differences

• Red-billed Duck is Least Concern while Ridgway's Rail is Near Threatened.

Taxonomic Classification

Rank	Red-billed Duck	Ridgway's Rail
Kingdom same	Animalia (Animals)	Animalia (Animals)
Phylum same	Chordata (Chordates)	Chordata (Chordates)
Class same	Aves (Birds)	Aves (Birds)
Order	Anseriformes (Anseriformes)	Gruiformes (Gruiformes)
Family	Anatidae	Rallidae
Genus	Anas	Rallus
Species	Anas erythrorhyncha	Rallus obsoletus

Evolutionary Relationship

Red-billed Duck and Ridgway's Rail share a common ancestor at the Class level: Aves. (Birds)

Conservation Status

Red-billed Duck

LC — Least Concern

Ridgway's Rail

NT — Near Threatened

Physical Characteristics

Attribute	Red-billed Duck	Ridgway's Rail
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).

Ridgway's Rail

Habitat

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

Range

Found in Norway. Listed as Near Threatened, this species requires ongoing monitoring to prevent population decline.

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