Ray's Knotgrass vs Красноклювая шилохвость

Polygonum oxyspermum compared with Anas erythrorhyncha

Key Differences

• Ray's Knotgrass is Endangered while Красноклювая шилохвость is Least Concern.

Taxonomic Classification

Rank	Ray's Knotgrass	Красноклювая шилохвость
Kingdom	Plantae (растения)	Animalia (животные)
Phylum	Magnoliophyta (магнолиофиты)	Chordata (хордовые)
Class	Magnoliopsida (Dicots)	Aves (птицы)
Order	Caryophyllales (гвоздичноцветные)	Anseriformes (гусеобразные)
Family	Polygonaceae	Anatidae
Genus	Polygonum	Anas
Species	Polygonum oxyspermum	Anas erythrorhyncha

Conservation Status

Ray's Knotgrass

EN — Endangered

Красноклювая шилохвость

LC — Least Concern

Physical Characteristics

Attribute	Ray's Knotgrass	Красноклювая шилохвость
Diet	—	—
Average Lifespan	—	—
Average Length	—	—
Average Weight	—	—

Habitat & Geographic Range

Ray's Knotgrass

Habitat

Typically found in diverse terrestrial habitats from tropical forests to temperate regions.

Range

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

Красноклювая шилохвость

Habitat

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

Range

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

Красноклювая шилохвость

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