Downland Marble vs Red-billed Duck

Endothenia oblongana compared with Anas erythrorhyncha

Key Differences

• Downland Marble is Endangered while Red-billed Duck is Least Concern.

Taxonomic Classification

Rank	Downland 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 oblongana	Anas erythrorhyncha

Evolutionary Relationship

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

Conservation Status

Downland Marble

EN — Endangered

Red-billed Duck

LC — Least Concern

Physical Characteristics

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

Habitat & Geographic Range

Downland Marble

Habitat

Typically found in virtually all terrestrial and freshwater habitats.

Range

Distributed across Belgium, Denmark, Norway, Portugal, and Sweden. Currently classified as Endangered on the IUCN Red List, this species faces significant conservation challenges across its range.

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