Least Stonewort vs Red-billed Duck

Nitella confervacea compared with Anas erythrorhyncha

Key Differences

• Least Stonewort is Endangered while Red-billed Duck is Least Concern.

Taxonomic Classification

Rank	Least 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 confervacea	Anas erythrorhyncha

Conservation Status

Least Stonewort

EN — Endangered

Red-billed Duck

LC — Least Concern

Physical Characteristics

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

Habitat & Geographic Range

Least Stonewort

Habitat

Native to Europe, inhabiting ecosystems characteristic of the region.

Range

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

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