Red-billed Duck vs rusty topsnail

Anas erythrorhyncha compared with Calliostoma conulus

Key Differences

• Red-billed Duck is Least Concern while rusty topsnail is Not Evaluated.

Taxonomic Classification

Rank	Red-billed Duck	rusty topsnail
Kingdom same	Animalia (Animals)	Animalia (Animals)
Phylum	Chordata (Chordates)	Mollusca (Mollusks)
Class	Aves (Birds)	Gastropoda (Gastropoda)
Order	Anseriformes (Anseriformes)	Trochida (Trochida)
Family	Anatidae	Calliostomatidae
Genus	Anas	Calliostoma
Species	Anas erythrorhyncha	Calliostoma conulus

Evolutionary Relationship

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

Conservation Status

Red-billed Duck

LC — Least Concern

rusty topsnail

NE — Not Evaluated

Physical Characteristics

Attribute	Red-billed Duck	rusty topsnail
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).

rusty topsnail

Habitat

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

Range

Found across Asia (Turkey) and Europe (5 countries).

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:

🇫🇷 France 🇳🇴 Norway