Crested Oval Sedge vs Red-billed Duck

Carex cristatella compared with Anas erythrorhyncha

Key Differences

Crested Oval Sedge is Extinct while Red-billed Duck is Least Concern.

Taxonomic Classification

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

Conservation Status

Crested Oval Sedge

EX — Extinct

Red-billed Duck

LC — Least Concern

Physical Characteristics

Attribute	Crested Oval Sedge	Red-billed Duck
Diet	—	—
Average Lifespan	—	—
Average Length	—	—
Average Weight	—	—

Habitat & Geographic Range

Crested Oval Sedge

Habitat

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

Range

Distributed across Canada and United States.

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 (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.