ハッカチョウ vs roker

Acridotheres cristatellus compared with Raja clavata

Key Differences

• ハッカチョウ is Least Concern while roker is Near Threatened.

Taxonomic Classification

Rank	ハッカチョウ	roker
Kingdom same	Animalia (動物)	Animalia (動物)
Phylum same	Chordata (脊索動物)	Chordata (脊索動物)
Class	Aves (鳥類)	Elasmobranchii
Order	Passeriformes (スズメ目)	Rajiformes (ガンギエイ目)
Family	Sturnidae	Rajidae
Genus	Acridotheres	Raja
Species	Acridotheres cristatellus	Raja clavata

Evolutionary Relationship

ハッカチョウ and roker share a common ancestor at the Phylum level: Chordata. (脊索動物)

Conservation Status

ハッカチョウ

LC — Least Concern

roker

NT — Near Threatened

Physical Characteristics

Attribute	ハッカチョウ	roker
Diet	—	—
Average Lifespan	—	—
Average Length	—	—
Average Weight	—	—

Habitat & Geographic 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).

roker

Habitat

Native to Europe, inhabiting ecosystems characteristic of the region.

Range

Distributed across Belgium, Denmark, Norway, Portugal, and Sweden. Listed as Near Threatened, this species requires ongoing monitoring to prevent population decline.

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