Dark Dwarf vs Red-billed Duck

Elachista subnigrella compared with Anas erythrorhyncha

Key Differences

• Dark Dwarf is Vulnerable while Red-billed Duck is Least Concern.

Taxonomic Classification

Rank	Dark Dwarf	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	Elachistidae	Anatidae
Genus	Elachista	Anas
Species	Elachista subnigrella	Anas erythrorhyncha

Evolutionary Relationship

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

Conservation Status

Dark Dwarf

VU — Vulnerable

Red-billed Duck

LC — Least Concern

Physical Characteristics

Attribute	Dark Dwarf	Red-billed Duck
Diet	—	—
Average Lifespan	—	—
Average Length	—	—
Average Weight	—	—

Habitat & Geographic Range

Dark Dwarf

Habitat

Typically found in virtually all terrestrial and freshwater habitats.

Range

Distributed across Belgium, Denmark, Norway, and Sweden. Currently classified as Vulnerable 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