grey shoulder-knot vs Red-billed Duck

Lithophane ornitopus compared with Anas erythrorhyncha

Taxonomic Classification

Rank	grey shoulder-knot	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	Noctuidae	Anatidae
Genus	Lithophane	Anas
Species	Lithophane ornitopus	Anas erythrorhyncha

Evolutionary Relationship

grey shoulder-knot and Red-billed Duck share a common ancestor at the Kingdom level: Animalia. (Animals)

Conservation Status

grey shoulder-knot

LC — Least Concern

Red-billed Duck

LC — Least Concern

Physical Characteristics

Attribute	grey shoulder-knot	Red-billed Duck
Diet	—	—
Average Lifespan	—	—
Average Length	—	—
Average Weight	—	—

Habitat & Geographic Range

grey shoulder-knot

Habitat

Typically found in virtually all terrestrial and freshwater habitats.

Range

Distributed across Belgium, Denmark, Norway, and Sweden.

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