Red-billed Duck vs three-nerved sedge

Anas erythrorhyncha compared with Carex trinervis

Key Differences

• Red-billed Duck is Least Concern while three-nerved sedge is Near Threatened.

Taxonomic Classification

Rank	Red-billed Duck	three-nerved sedge
Kingdom	Animalia (Animals)	Plantae (Plants)
Phylum	Chordata (Chordates)	Magnoliophyta (Flowering Plants)
Class	Aves (Birds)	Liliopsida (Monocots)
Order	Anseriformes (Anseriformes)	Poales (Grasses)
Family	Anatidae	Cyperaceae
Genus	Anas	Carex
Species	Anas erythrorhyncha	Carex trinervis

Conservation Status

Red-billed Duck

LC — Least Concern

three-nerved sedge

NT — Near Threatened

Physical Characteristics

Attribute	Red-billed Duck	three-nerved sedge
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).

three-nerved sedge

Habitat

Typically found in grasslands, wetlands, forests, and cultivated landscapes.

Range

Distributed across Belgium, Denmark, Norway, Portugal, 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 2 countries:

🇧🇪 Belgium 🇳🇴 Norway