Red-billed Duck vs Rufous Spinetail

Anas erythrorhyncha compared with Synallaxis unirufa

Taxonomic Classification

Rank	Red-billed Duck	Rufous Spinetail
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	Furnariidae
Genus	Anas	Synallaxis
Species	Anas erythrorhyncha	Synallaxis unirufa

Evolutionary Relationship

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

Conservation Status

Red-billed Duck

LC — Least Concern

Rufous Spinetail

LC — Least Concern

Physical Characteristics

Attribute	Red-billed Duck	Rufous Spinetail
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).

Rufous Spinetail

Habitat

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

Range

Distributed across Colombia, Ecuador, Norway, and Venezuela.

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.

Rufous Spinetail

Rufous Spinetail (Synallaxis unirufa) 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 2 countries:

🇪🇨 Ecuador 🇳🇴 Norway