Mottled Marble vs Red-billed Duck

Bactra furfurana compared with Anas erythrorhyncha

Key Differences

• Mottled Marble is Near Threatened while Red-billed Duck is Least Concern.

Taxonomic Classification

Rank	Mottled Marble	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	Tortricidae	Anatidae
Genus	Bactra	Anas
Species	Bactra furfurana	Anas erythrorhyncha

Evolutionary Relationship

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

Conservation Status

Mottled Marble

NT — Near Threatened

Red-billed Duck

LC — Least Concern

Physical Characteristics

Attribute	Mottled Marble	Red-billed Duck
Diet	—	—
Average Lifespan	—	—
Average Length	—	—
Average Weight	—	—

Habitat & Geographic Range

Mottled Marble

Habitat

Typically found in virtually all terrestrial and freshwater habitats.

Range

Widely distributed across Asia (Taiwan), Europe (4 countries), and North America (Canada, United States). Listed as Near Threatened, this species requires ongoing monitoring to prevent population decline.

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