Red-billed Duck vs Woolly Foam

Anas erythrorhyncha compared with Stereocaulon tomentosum

Key Differences

• Red-billed Duck is Least Concern while Woolly Foam is Endangered.

Taxonomic Classification

Rank	Red-billed Duck	Woolly Foam
Kingdom	Animalia (Animals)	Fungi (Fungi)
Phylum	Chordata (Chordates)	Ascomycota (Sac Fungi)
Class	Aves (Birds)	Lecanoromycetes (Lecanoromycetes)
Order	Anseriformes (Anseriformes)	Lecanorales (Lecanorales)
Family	Anatidae	Stereocaulaceae
Genus	Anas	Stereocaulon
Species	Anas erythrorhyncha	Stereocaulon tomentosum

Conservation Status

Red-billed Duck

LC — Least Concern

Woolly Foam

EN — Endangered

Physical Characteristics

Attribute	Red-billed Duck	Woolly Foam
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).

Woolly Foam

Habitat

Native to Europe and North America and South America, inhabiting ecosystems characteristic of the region.

Range

Distributed across Colombia, Denmark, Norway, Sweden, and United States. Currently classified as Endangered 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