Marbled Minor vs Red-billed Duck

Oligia strigilis compared with Anas erythrorhyncha

Taxonomic Classification

Rank	Marbled Minor	Red-billed Duck
Kingdom same	Animalia (Animals)	Animalia (Animals)
Phylum	Arthropoda (Arthropods)	Chordata (Chordates)
Class	Insecta (Insects)	Aves (Birds)
Order	Lepidoptera (Butterflies & Moths)	Anseriformes (Anseriformes)
Family	Noctuidae	Anatidae
Genus	Oligia	Anas
Species	Oligia strigilis	Anas erythrorhyncha

Evolutionary Relationship

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

Conservation Status

Marbled Minor

LC — Least Concern

Red-billed Duck

LC — Least Concern

Physical Characteristics

Attribute	Marbled Minor	Red-billed Duck
Diet	—	—
Average Lifespan	—	—
Average Length	—	—
Average Weight	—	—

Habitat & Geographic Range

Marbled Minor

Habitat

Typically found in virtually all terrestrial and freshwater habitats.

Range

Distributed across Belgium, Denmark, Norway, Sweden, and United States.

Red-billed Duck

Habitat

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

Range

Found across Europe (6 countries) and South America (Ecuador).

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