Red-billed Duck vs robust shell

Anas erythrorhyncha compared with Littoraria undulata

Taxonomic Classification

Rank	Red-billed Duck	robust shell
Kingdom same	Animalia (Animals)	Animalia (Animals)
Phylum	Chordata (Chordates)	Mollusca (Mollusks)
Class	Aves (Birds)	Gastropoda (Gastropoda)
Order	Anseriformes (Anseriformes)	Littorinimorpha (Littorinimorpha)
Family	Anatidae	Littorinidae
Genus	Anas	Littoraria
Species	Anas erythrorhyncha	Littoraria undulata

Evolutionary Relationship

Red-billed Duck and robust shell share a common ancestor at the Kingdom level: Animalia. (Animals)

Conservation Status

Red-billed Duck

LC — Least Concern

robust shell

LC — Least Concern

Physical Characteristics

Attribute	Red-billed Duck	robust shell
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).

robust shell

Habitat

Typically found in terrestrial and aquatic habitats including forests and freshwater.

Range

Found in Taiwan.

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.