Black-edged Marble vs Red-billed Duck

Endothenia nigricostana compared with Anas erythrorhyncha

Key Differences

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

Taxonomic Classification

Rank	Black-edged 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	Endothenia	Anas
Species	Endothenia nigricostana	Anas erythrorhyncha

Evolutionary Relationship

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

Conservation Status

Black-edged Marble

NT — Near Threatened

Red-billed Duck

LC — Least Concern

Physical Characteristics

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

Habitat & Geographic Range

Black-edged Marble

Habitat

Typically found in virtually all terrestrial and freshwater habitats.

Range

Distributed across Belgium, Denmark, and Sweden. 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).

Black-edged Marble

The Black-edged Marble (Endothenia nigricostana) is a species in the genus Endothenia. It is currently classified as Near Threatened on the IUCN Red List. Typically found in virtually all terrestrial and freshwater habitats. Distributed across Belgium, Denmark, and Sweden. Listed as Near Threatened, this species requires ongoing monitoring to prevent population decline.

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 1 countries:

🇧🇪 Belgium