Eurasian red squirrel vs Американский красноголовый нырок

Sciurus vulgaris compared with Aythya americana

Key Differences

• Eurasian red squirrel is Least Concern while Американский красноголовый нырок is Not Evaluated.

Taxonomic Classification

Rank	Eurasian red squirrel	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	Sciuridae (Squirrels)	Anatidae
Genus	Sciurus (Tree Squirrels)	Aythya
Species	Sciurus vulgaris	Aythya americana

Evolutionary Relationship

Eurasian red squirrel and Американский красноголовый нырок share a common ancestor at the Phylum level: Chordata. (хордовые)

Conservation Status

Eurasian red squirrel

LC — Least Concern

Американский красноголовый нырок

NE — Not Evaluated

Physical Characteristics

Attribute	Eurasian red squirrel	Американский красноголовый нырок
Diet	—	—
Average Lifespan	—	—
Average Length	—	—
Average Weight	—	—

Habitat & Geographic Range

Eurasian red squirrel

Habitat

Typically found in diverse terrestrial and aquatic ecosystems.

Range

Found across Asia (Georgia) and Europe (5 countries).

Американский красноголовый нырок

Habitat

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

Range

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

Eurasian red squirrel

Eurasian red squirrel (Sciurus vulgaris) 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.

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 3 countries:

🇧🇪 Belgium 🇳🇴 Norway 🇸🇪 Sweden