Oahu Oo vs Red-billed Duck

Moho apicalis compared with Anas erythrorhyncha

Key Differences

• Oahu Oo is Extinct while Red-billed Duck is Least Concern.

Taxonomic Classification

Rank	Oahu Oo	Red-billed Duck
Kingdom same	Animalia (Animals)	Animalia (Animals)
Phylum same	Chordata (Chordates)	Chordata (Chordates)
Class same	Aves (Birds)	Aves (Birds)
Order	Passeriformes (Songbirds)	Anseriformes (Anseriformes)
Family	Mohoidae	Anatidae
Genus	Moho	Anas
Species	Moho apicalis	Anas erythrorhyncha

Evolutionary Relationship

Oahu Oo and Red-billed Duck share a common ancestor at the Class level: Aves. (Birds)

Conservation Status

Oahu Oo

EX — Extinct

Red-billed Duck

LC — Least Concern

Physical Characteristics

Attribute	Oahu Oo	Red-billed Duck
Diet	—	—
Average Lifespan	—	—
Average Length	—	—
Average Weight	—	—

Habitat & Geographic Range

Oahu Oo

Habitat

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

Range

Found in Norway.

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 1 countries:

🇳🇴 Norway