Oahu Elepaio vs Red-billed Duck

Chasiempis ibidis compared with Anas erythrorhyncha

Key Differences

• Oahu Elepaio is Endangered while Red-billed Duck is Least Concern.

Taxonomic Classification

Rank	Oahu Elepaio	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	Monarchidae	Anatidae
Genus	Chasiempis	Anas
Species	Chasiempis ibidis	Anas erythrorhyncha

Evolutionary Relationship

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

Conservation Status

Oahu Elepaio

EN — Endangered

Red-billed Duck

LC — Least Concern

Physical Characteristics

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

Habitat & Geographic Range

Oahu Elepaio

Habitat

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

Range

Found in Norway. Currently classified as Endangered 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.

Shared Countries

Both species can be found in 1 countries:

🇳🇴 Norway