Dark Stonewort vs Red-billed Duck

Nitella opaca compared with Anas erythrorhyncha

Taxonomic Classification

Rank	Dark Stonewort	Red-billed Duck
Kingdom	Plantae (Plants)	Animalia (Animals)
Phylum	Charophyta (Charophyta)	Chordata (Chordates)
Class	Charophyceae (Charophyceae)	Aves (Birds)
Order	Charales (Charales)	Anseriformes (Anseriformes)
Family	Characeae	Anatidae
Genus	Nitella	Anas
Species	Nitella opaca	Anas erythrorhyncha

Conservation Status

Dark Stonewort

LC — Least Concern

Red-billed Duck

LC — Least Concern

Physical Characteristics

Attribute	Dark Stonewort	Red-billed Duck
Diet	—	—
Average Lifespan	—	—
Average Length	—	—
Average Weight	—	—

Habitat & Geographic Range

Dark Stonewort

Habitat

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

Range

Distributed across Brazil, Denmark, Norway, Sweden, and United States.

Red-billed Duck

Habitat

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

Range

Found across Europe (6 countries) and South America (Ecuador).

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