Ferny Azolla vs Red-billed Duck

Azolla pinnata compared with Anas erythrorhyncha

Taxonomic Classification

Rank	Ferny Azolla	Red-billed Duck
Kingdom	Plantae (Plants)	Animalia (Animals)
Phylum	Tracheophyta	Chordata (Chordates)
Class	Polypodiopsida (Polypodiopsida)	Aves (Birds)
Order	Salviniales (Salviniales)	Anseriformes (Anseriformes)
Family	Salviniaceae	Anatidae
Genus	Azolla	Anas
Species	Azolla pinnata	Anas erythrorhyncha

Conservation Status

Ferny Azolla

LC — Least Concern

Red-billed Duck

LC — Least Concern

Physical Characteristics

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

Habitat & Geographic Range

Ferny Azolla

Habitat

Found across multiple habitat types including deserts and xeric shrublands, tropical and subtropical moist broadleaf forests, and flooded grasslands and savannas spanning the Palearctic and Oceanian realms.

Range

Widely distributed across Africa (4 countries), Asia (Indonesia, Singapore, Taiwan), North America (Mexico, United States), and Oceania and the Pacific (Marshall Islands, New Zealand, Tuvalu).

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.