Polynesian rat vs Американский красноголовый нырок

Rattus exulans compared with Aythya americana

Key Differences

• Polynesian rat is Least Concern while Американский красноголовый нырок is Not Evaluated.

Taxonomic Classification

Rank	Polynesian rat	Американский красноголовый нырок
Kingdom same	Animalia (животные)	Animalia (животные)
Phylum same	Chordata (хордовые)	Chordata (хордовые)
Class	Mammalia (млекопитающие)	Aves (птицы)
Order	Rodentia (грызуны)	Anseriformes (гусеобразные)
Family	Muridae (Mice & Rats)	Anatidae
Genus	Rattus	Aythya
Species	Rattus exulans	Aythya americana

Evolutionary Relationship

Polynesian rat and Американский красноголовый нырок share a common ancestor at the Phylum level: Chordata. (хордовые)

Conservation Status

Polynesian rat

LC — Least Concern

Американский красноголовый нырок

NE — Not Evaluated

Physical Characteristics

Attribute	Polynesian rat	Американский красноголовый нырок
Diet	—	—
Average Lifespan	—	—
Average Length	—	—
Average Weight	—	—

Habitat & Geographic Range

Polynesian rat

Habitat

Found across multiple habitat types including tropical and subtropical moist broadleaf forests, tropical and subtropical dry broadleaf forests, and tropical and subtropical coniferous forests, among 4 distinct biome types spanning the Australasia and Indomalayan realms. Populations are also found in montane and highland environments at higher elevations.

Range

Widely distributed across Asia (6 countries), Europe (United Kingdom), North America (United States), Oceania and the Pacific (11 countries), and South America (Chile).

Американский красноголовый нырок

Habitat

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

Range

Found across Europe (7 countries) and North America (United States).

Американский красноголовый нырок

Redhead (Aythya americana) is classified as Not Evaluated (NE) on the IUCN Red List. Not yet evaluated against IUCN Red List criteria. Conservation status remains to be determined.

Shared Countries

Both species can be found in 2 countries:

🇬🇧 United Kingdom 🇺🇸 United States