vs Red-billed Duck

Nitzschia flexa compared with Anas erythrorhyncha

Key Differences

• is Not Evaluated while Red-billed Duck is Least Concern.

Taxonomic Classification

Rank		Red-billed Duck
Kingdom	Chromista (Chromista)	Animalia (Animals)
Phylum	Ochrophyta (Ochrophyta)	Chordata (Chordates)
Class	Bacillariophyceae (Bacillariophyceae)	Aves (Birds)
Order	Bacillariales (Bacillariales)	Anseriformes (Anseriformes)
Family	Bacillariaceae	Anatidae
Genus	Nitzschia	Anas
Species	Nitzschia flexa	Anas erythrorhyncha

Conservation Status

NE — Not Evaluated

Red-billed Duck

LC — Least Concern

Physical Characteristics

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

Habitat & Geographic Range

Habitat

Native to Europe, inhabiting ecosystems characteristic of the region.

Range

Distributed across Norway and Sweden.

Red-billed Duck

Habitat

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

Range

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

Nitzschia flexa is a pennate diatom (class Bacillariophyceae) with a characteristically curved or bent raphe system that gives the genus its distinctive appearance. It inhabits freshwater to brackish environments and contributes to benthic and planktonic algal communities. As a photosynthetic microalga, it plays a foundational role in aquatic food webs and primary production.

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