Red-billed Duck vs Sowerby's keeled slug

Anas erythrorhyncha compared with Tandonia sowerbyi

Key Differences

• Red-billed Duck is Least Concern while Sowerby's keeled slug is Data Deficient.

Taxonomic Classification

Rank	Red-billed Duck	Sowerby's keeled slug
Kingdom same	Animalia (Animals)	Animalia (Animals)
Phylum	Chordata (Chordates)	Mollusca (Mollusks)
Class	Aves (Birds)	Gastropoda (Gastropoda)
Order	Anseriformes (Anseriformes)	Stylommatophora (Stylommatophora)
Family	Anatidae	Milacidae
Genus	Anas	Tandonia
Species	Anas erythrorhyncha	Tandonia sowerbyi

Evolutionary Relationship

Red-billed Duck and Sowerby's keeled slug share a common ancestor at the Kingdom level: Animalia. (Animals)

Conservation Status

Red-billed Duck

LC — Least Concern

Sowerby's keeled slug

DD — Data Deficient

Physical Characteristics

Attribute	Red-billed Duck	Sowerby's keeled slug
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).

Sowerby's keeled slug

Habitat

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

Range

Found across Europe (10 countries) and Oceania and the Pacific (New Zealand).

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 5 countries:

🇧🇪 Belgium 🇫🇷 France 🇩🇪 Germany 🇳🇱 Netherlands 🇬🇧 United Kingdom