ナガスクジラ vs ハッカチョウ

Balaenoptera physalus compared with Acridotheres cristatellus

Key Differences

• ナガスクジラ is Endangered while ハッカチョウ is Least Concern.

Taxonomic Classification

Rank	ナガスクジラ	ハッカチョウ
Kingdom same	Animalia (動物)	Animalia (動物)
Phylum same	Chordata (脊索動物)	Chordata (脊索動物)
Class	Mammalia (哺乳類)	Aves (鳥類)
Order	Cetacea (Whales & Dolphins)	Passeriformes (スズメ目)
Family	Balaenopteridae (Rorquals)	Sturnidae
Genus	Balaenoptera (Rorquals)	Acridotheres
Species	Balaenoptera physalus	Acridotheres cristatellus

Evolutionary Relationship

ナガスクジラ and ハッカチョウ share a common ancestor at the Phylum level: Chordata. (脊索動物)

Conservation Status

ナガスクジラ

EN — Endangered

ハッカチョウ

LC — Least Concern

Physical Characteristics

Attribute	ナガスクジラ	ハッカチョウ
Diet	—	—
Average Lifespan	—	—
Average Length	—	—
Average Weight	—	—

Habitat & Geographic Range

ナガスクジラ

Habitat

Found across multiple habitat types including tropical and subtropical dry broadleaf forests, flooded grasslands and savannas, and montane grasslands and shrublands, among 4 distinct biome types within the Neotropic biogeographic realm.

Range

Widely distributed across Asia (Taiwan), Europe (5 countries), and South America (Colombia, Ecuador, Venezuela). Currently classified as Endangered on the IUCN Red List, this species faces significant conservation challenges across its range.

ハッカチョウ

Habitat

Inhabits tropical and subtropical dry broadleaf forests and tropical and subtropical grasslands and savannas within the Neotropic biogeographic realm. Populations are also found in montane and highland environments at higher elevations.

Range

Widely distributed across Asia (Japan, Singapore, United Arab Emirates), Europe (7 countries), and South America (Argentina, Bolivia).

ナガスクジラ

ナガスクジラ（Balaenoptera physalus）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、個体数の著しい減少と生存への継続的な脅威に直面しています。

ハッカチョウ

カンムリハッカ（Acridotheres cristatellus）はIUCNレッドリストで軽度懸念（LC）に分類される。分布域全体で広く豊富に生息し、個体数は安定しており、即座の保全上の懸念はない。

Shared Countries

Both species can be found in 3 countries:

🇧🇪 Belgium 🇳🇴 Norway 🇵🇹 Portugal