オオホシハジロ vs ホシハジロ

Aythya valisineria compared with Aythya ferina

Key Differences

• オオホシハジロ is Not Evaluated while ホシハジロ is Near Threatened.

Taxonomic Classification

Rank	オオホシハジロ	ホシハジロ
Kingdom same	Animalia (動物)	Animalia (動物)
Phylum same	Chordata (脊索動物)	Chordata (脊索動物)
Class same	Aves (鳥類)	Aves (鳥類)
Order same	Anseriformes (カモ目)	Anseriformes (カモ目)
Family same	Anatidae	Anatidae
Genus same	Aythya	Aythya
Species	Aythya valisineria	Aythya ferina

Evolutionary Relationship

オオホシハジロ and ホシハジロ share a common ancestor at the Genus level: Aythya.

Conservation Status

オオホシハジロ

NE — Not Evaluated

ホシハジロ

NT — Near Threatened

Physical Characteristics

Attribute	オオホシハジロ	ホシハジロ
Diet	—	—
Average Lifespan	—	—
Average Length	—	—
Average Weight	—	—

Habitat & Geographic Range

オオホシハジロ

Habitat

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

Range

Widely distributed across Asia (Taiwan), Europe (6 countries), and North America (United States).

ホシハジロ

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.

オオホシハジロ

カンバスバック（Aythya valisineria）はIUCNレッドリストで未評価（NE）に分類されています。まだIUCNレッドリストの基準に照らした評価が行われておらず、保全状況は未確定です。

ホシハジロ

ホシハジロ（Aythya ferina）はIUCNレッドリストで準絶滅危惧（NT）に分類されている。脅威のある種の基準に近く、保全措置がなければ脆弱になる可能性がある。

Shared Countries

Both species can be found in 8 countries:

🇧🇪 Belgium 🇫🇷 France 🇳🇱 Netherlands 🇳🇴 Norway 🇸🇪 Sweden 🇹🇼 Taiwan 🇬🇧 United Kingdom 🇺🇸 United States