Ko`oko`olau vs Red-billed Duck

Bidens campylotheca compared with Anas erythrorhyncha

Key Differences

• Ko`oko`olau is Vulnerable while Red-billed Duck is Least Concern.

Taxonomic Classification

Rank	Ko`oko`olau	Red-billed Duck
Kingdom	Plantae (Plants)	Animalia (Animals)
Phylum	Magnoliophyta (Flowering Plants)	Chordata (Chordates)
Class	Magnoliopsida (Dicots)	Aves (Birds)
Order	Asterales (Daisies & Sunflowers)	Anseriformes (Anseriformes)
Family	Asteraceae (Daisy Family)	Anatidae
Genus	Bidens	Anas
Species	Bidens campylotheca	Anas erythrorhyncha

Conservation Status

Ko`oko`olau

VU — Vulnerable

Red-billed Duck

LC — Least Concern

Physical Characteristics

Attribute	Ko`oko`olau	Red-billed Duck
Diet	—	—
Average Lifespan	—	—
Average Length	—	—
Average Weight	—	—

Habitat & Geographic Range

Ko`oko`olau

Habitat

Found across multiple habitat types including temperate broadleaf and mixed forests, temperate coniferous forests, and temperate grasslands and steppes, among 4 distinct biome types within the Palearctic biogeographic realm. Populations are also found in montane and highland environments at higher elevations.

Range

Found in Turkey. 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.