Red-billed Duck vs Rusty-headed Spinetail

Anas erythrorhyncha compared with Synallaxis fuscorufa

Key Differences

• Red-billed Duck is Least Concern while Rusty-headed Spinetail is Vulnerable.

Taxonomic Classification

Rank	Red-billed Duck	Rusty-headed 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 fuscorufa

Evolutionary Relationship

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

Conservation Status

Red-billed Duck

LC — Least Concern

Rusty-headed Spinetail

VU — Vulnerable

Physical Characteristics

Attribute	Red-billed Duck	Rusty-headed 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).

Rusty-headed Spinetail

Habitat

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

Range

Distributed across Colombia and Norway. Currently classified as Vulnerable on the IUCN Red List, this species faces significant conservation challenges across its range.

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