Лайсанский чирок vs Ruff

Anas laysanensis compared with Calidris pugnax

Key Differences

• Лайсанский чирок is Critically Endangered while Ruff is Least Concern.

Taxonomic Classification

Rank	Лайсанский чирок	Ruff
Kingdom same	Animalia (животные)	Animalia (животные)
Phylum same	Chordata (хордовые)	Chordata (хордовые)
Class same	Aves (птицы)	Aves (птицы)
Order	Anseriformes (гусеобразные)	Charadriiformes (ржанкообразные)
Family	Anatidae	Scolopacidae
Genus	Anas	Calidris
Species	Anas laysanensis	Calidris pugnax

Evolutionary Relationship

Лайсанский чирок and Ruff share a common ancestor at the Class level: Aves. (птицы)

Conservation Status

Лайсанский чирок

CR — Critically Endangered

Ruff

LC — Least Concern

Physical Characteristics

Attribute	Лайсанский чирок	Ruff
Diet	—	—
Average Lifespan	—	—
Average Length	—	—
Average Weight	—	—

Habitat & Geographic Range

Лайсанский чирок

Habitat

Found across multiple habitat types including temperate broadleaf and mixed forests, temperate coniferous forests, and Mediterranean forests and woodlands within the Palearctic biogeographic realm. Populations are also found in montane and highland environments at higher elevations.

Range

Distributed across Belgium, France, Netherlands, Norway, and United Kingdom. Currently classified as Critically Endangered on the IUCN Red List, this species faces significant conservation challenges across its range.

Ruff

Habitat

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

Range

Widely distributed across Asia (Taiwan), Europe (4 countries), North America (United States), and South America (Colombia, Venezuela).

Лайсанский чирок

Laysan Duck (Anas laysanensis) is classified as Critically Endangered (CR) on the IUCN Red List. Facing an extremely high risk of extinction in the wild due to severe population decline and habitat loss.

Ruff

Ruff (Calidris pugnax) 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 2 countries:

🇧🇪 Belgium 🇳🇴 Norway