Red-billed Duck vs Swan-feather Dwarf

Anas erythrorhyncha compared with Elachista argentella

Key Differences

• Red-billed Duck is Least Concern while Swan-feather Dwarf is Endangered.

Taxonomic Classification

Rank	Red-billed Duck	Swan-feather Dwarf
Kingdom same	Animalia (Animals)	Animalia (Animals)
Phylum	Chordata (Chordates)	Arthropoda (Arthropods)
Class	Aves (Birds)	Insecta (Insects)
Order	Anseriformes (Anseriformes)	Lepidoptera (Butterflies & Moths)
Family	Anatidae	Elachistidae
Genus	Anas	Elachista
Species	Anas erythrorhyncha	Elachista argentella

Evolutionary Relationship

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

Conservation Status

Red-billed Duck

LC — Least Concern

Swan-feather Dwarf

EN — Endangered

Physical Characteristics

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

Habitat & Geographic Range

Red-billed Duck

Habitat

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

Range

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

Swan-feather Dwarf

Habitat

Typically found in virtually all terrestrial and freshwater habitats.

Range

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

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