ハジロカイツブリ vs Foca Pia

Podiceps nigricollis compared with Pagophilus groenlandicus

Key Differences

• ハジロカイツブリ is Endangered while Foca Pia is Not Evaluated.

Taxonomic Classification

Rank	ハジロカイツブリ	Foca Pia
Kingdom same	Animalia (動物)	Animalia (動物)
Phylum same	Chordata (脊索動物)	Chordata (脊索動物)
Class	Aves (鳥類)	Mammalia (哺乳類)
Order	Podicipediformes (Podicipediformes)	Pinnipedia (Seals & Sea Lions)
Family	Podicipedidae	Phocidae (True Seals)
Genus	Podiceps	Pagophilus
Species	Podiceps nigricollis	Pagophilus groenlandicus

Evolutionary Relationship

ハジロカイツブリ and Foca Pia share a common ancestor at the Phylum level: Chordata. (脊索動物)

Conservation Status

ハジロカイツブリ

EN — Endangered

Foca Pia

NE — Not Evaluated

Physical Characteristics

Attribute	ハジロカイツブリ	Foca Pia
Diet	—	—
Average Lifespan	—	—
Average Length	—	—
Average Weight	—	—

Habitat & Geographic Range

ハジロカイツブリ

Habitat

Found across multiple habitat types including temperate broadleaf and mixed forests, temperate coniferous forests, and boreal forests and taiga, among 8 distinct biome types within the Palearctic biogeographic realm. Populations are also found in montane and highland environments at higher elevations.

Range

Found across Europe (5 countries) and North America (United States). Currently classified as Endangered on the IUCN Red List, this species faces significant conservation challenges across its range.

Foca Pia

Habitat

Typically found in diverse terrestrial and aquatic ecosystems.

Range

Distributed across Denmark, Norway, Portugal, and Sweden.

ハジロカイツブリ

Black-Necked Grebe（Podiceps nigricollis）はIUCNレッドリストで絶滅危惧種（EN）に分類されています。野生での絶滅リスクが高く、個体数が著しく減少し、生存を脅かす要因が継続しています。

Shared Countries

Both species can be found in 3 countries:

🇩🇰 Denmark 🇳🇴 Norway 🇸🇪 Sweden