Red-billed Duck vs Red-crested Cardinal

Anas erythrorhyncha compared with Paroaria coronata

Taxonomic Classification

Rank	Red-billed Duck	Red-crested Cardinal
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	Thraupidae
Genus	Anas	Paroaria
Species	Anas erythrorhyncha	Paroaria coronata

Evolutionary Relationship

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

Conservation Status

Red-billed Duck

LC — Least Concern

Red-crested Cardinal

LC — Least Concern

Physical Characteristics

Attribute	Red-billed Duck	Red-crested Cardinal
Diet	—	—
Average Lifespan	—	—
Average Length	—	—
Average Weight	—	—

Habitat & Geographic 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-crested Cardinal

Habitat

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

Range

Widely distributed across Asia (Japan, Taiwan, United Arab Emirates), Europe (8 countries), North America (United States), and South America (Chile, Ecuador, Peru).

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.

Red-crested Cardinal

A striking medium-sized bird with brilliant red crest, white face, and grey body native to South America from Bolivia and Brazil to Argentina, red-crested cardinals have been introduced to Hawaii and other Pacific islands, becoming iconic garden birds in Honolulu. They inhabit dense shrubs, grassland edges, and suburban gardens, foraging on seeds and small insects. Despite their name and superficial resemblance, they are not closely related to North American cardinals but belong to the tanager family.

Shared Countries

Both species can be found in 7 countries:

🇧🇪 Belgium 🇪🇨 Ecuador 🇫🇷 France 🇩🇪 Germany 🇳🇱 Netherlands 🇳🇴 Norway 🇬🇧 United Kingdom