紅頭潛鴨 vs 环颈潜鸭

Aythya ferina compared with Aythya collaris

Key Differences

• 紅頭潛鴨 is Near Threatened while 环颈潜鸭 is Least Concern.

Taxonomic Classification

Rank	紅頭潛鴨	环颈潜鸭
Kingdom same	Animalia (动物界)	Animalia (动物界)
Phylum same	Chordata (脊索动物门)	Chordata (脊索动物门)
Class same	Aves (鳥綱)	Aves (鳥綱)
Order same	Anseriformes (雁形目)	Anseriformes (雁形目)
Family same	Anatidae	Anatidae
Genus same	Aythya	Aythya
Species	Aythya ferina	Aythya collaris

Evolutionary Relationship

紅頭潛鴨 and 环颈潜鸭 share a common ancestor at the Genus level: Aythya.

Conservation Status

紅頭潛鴨

NT — Near Threatened

环颈潜鸭

LC — Least Concern

Physical Characteristics

Attribute	紅頭潛鴨	环颈潜鸭
Diet	—	—
Average Lifespan	—	—
Average Length	—	—
Average Weight	—	—

Habitat & Geographic Range

紅頭潛鴨

Habitat

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

Range

Widely distributed across Asia (Taiwan), Europe (8 countries), and North America (United States). Listed as Near Threatened, this species requires ongoing monitoring to prevent population decline.

环颈潜鸭

Habitat

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

Range

Widely distributed across Asia (Taiwan), Europe (5 countries), North America (United States), and South America (Colombia, Ecuador, Venezuela).

紅頭潛鴨

红头潜鸭（Aythya ferina）在IUCN红色名录中被列为近危（NT）。接近受威胁标准，若无保护措施，种群可能变得脆弱。

环颈潜鸭

环颈潜鸭（Aythya collaris）在IUCN红色名录中被列为无危（LC）。在其分布范围内广泛分布且数量丰富，种群稳定，无迫切保护忧虑。

Shared Countries

Both species can be found in 6 countries:

🇧🇪 Belgium 🇩🇰 Denmark 🇳🇴 Norway 🇸🇪 Sweden 🇹🇼 Taiwan 🇺🇸 United States