Red-billed Duck vs spreading threadwort

Anas erythrorhyncha compared with Cephaloziella divaricata

Key Differences

• Red-billed Duck is Least Concern while spreading threadwort is Endangered.

Taxonomic Classification

Rank	Red-billed Duck	spreading threadwort
Kingdom	Animalia (Animals)	Plantae (Plants)
Phylum	Chordata (Chordates)	Marchantiophyta (liverwort)
Class	Aves (Birds)	Jungermanniopsida (Jungermanniopsida)
Order	Anseriformes (Anseriformes)	Jungermanniales (Jungermanniales)
Family	Anatidae	Cephaloziellaceae
Genus	Anas	Cephaloziella
Species	Anas erythrorhyncha	Cephaloziella divaricata

Conservation Status

Red-billed Duck

LC — Least Concern

spreading threadwort

EN — Endangered

Physical Characteristics

Attribute	Red-billed Duck	spreading threadwort
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).

spreading threadwort

Habitat

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

Range

Widely distributed across Europe (5 countries), North America (United States), and South America (Brazil). 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 2 countries:

🇧🇪 Belgium 🇳🇴 Norway