Ferruginous Duck vs Yellow-billed Cacique

Aythya nyroca compared with Amblycercus holosericeus

Key Differences

• Ferruginous Duck is Not Evaluated while Yellow-billed Cacique is Least Concern.

Taxonomic Classification

Rank	Ferruginous Duck	Yellow-billed Cacique
Kingdom same	Animalia (Animals)	Animalia (Animals)
Phylum same	Chordata (Chordates)	Chordata (Chordates)
Class same	Aves (Birds)	Aves (Birds)
Order	Anseriformes (Anseriformes)	Passeriformes (Songbirds)
Family	Anatidae	Icteridae
Genus	Aythya	Amblycercus
Species	Aythya nyroca	Amblycercus holosericeus

Evolutionary Relationship

Ferruginous Duck and Yellow-billed Cacique share a common ancestor at the Class level: Aves. (Birds)

Conservation Status

Ferruginous Duck

NE — Not Evaluated

Yellow-billed Cacique

LC — Least Concern

Physical Characteristics

Attribute	Ferruginous Duck	Yellow-billed Cacique
Diet	—	—
Average Lifespan	—	—
Average Length	—	—
Average Weight	—	—

Habitat & Geographic Range

Ferruginous Duck

Habitat

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

Range

Found across Asia (Taiwan) and Europe (8 countries).

Yellow-billed Cacique

Habitat

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

Range

Distributed across Colombia, Ecuador, Norway, and Venezuela.

Ferruginous Duck

Ferruginous Duck (Aythya nyroca) is classified as Not Evaluated (NE) on the IUCN Red List. Not yet evaluated against IUCN Red List criteria. Conservation status remains to be determined.

Yellow-billed Cacique

Yellow-billed Cacique (Amblycercus holosericeus) 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