アカハジロ vs ホシハジロ

Aythya baeri compared with Aythya ferina

Key Differences

アカハジロ is Critically Endangered while ホシハジロ is Near Threatened.

Taxonomic Classification

Rank	アカハジロ	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 baeri	Aythya ferina

Evolutionary Relationship

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

表示 Genus: Aythya

Conservation Status

アカハジロ

CR — Critically Endangered

ホシハジロ

NT — Near Threatened

Physical Characteristics

Attribute	アカハジロ	ホシハジロ
Diet	—	—
Average Lifespan	—	—
Average Length	—	—
Average Weight	—	—

Habitat & Geographic Range

アカハジロ

Habitat

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

Range

Found across Asia (Taiwan) and Europe (5 countries). Currently classified as Critically Endangered on the IUCN Red List, this species faces significant conservation challenges across its range.

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.

アカハジロ

The Baer's Pochard (Aythya baeri) is a species in the genus Aythya. It is currently classified as Critically Endangered on the IUCN Red List. Found across multiple habitat types including tropical and subtropical moist broadleaf forests, temperate broadleaf and mixed forests, and temperate coniferous forests, among 4 distinct biome types spanning the Indomalayan and Palearctic re.