ハッカチョウ vs

Acridotheres cristatellus compared with Usnea cornuta

Key Differences

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

Taxonomic Classification

Rank	ハッカチョウ
Kingdom	Animalia (動物)	Fungi (菌界)
Phylum	Chordata (脊索動物)	Ascomycota (子嚢菌門)
Class	Aves (鳥類)	Lecanoromycetes (チャシブゴケ菌綱)
Order	Passeriformes (スズメ目)	Lecanorales (チャシブゴケ目)
Family	Sturnidae	Parmeliaceae
Genus	Acridotheres	Usnea
Species	Acridotheres cristatellus	Usnea cornuta

Conservation Status

ハッカチョウ

LC — Least Concern

NT — Near Threatened

Physical Characteristics

Attribute	ハッカチョウ
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).

Habitat

Native to Europe, inhabiting ecosystems characteristic of the region.

Range

Distributed across 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。

Usnea cornutaはParmeliaceae科の果状地衣類で、準絶滅危惧(NT)と評価されています。樹木の枝や小枝に垂れ下がる茂み状の葉状体を形成し、主に湿潤な森林環境に生息します。すべてのUsnea属の種と同様に大気汚染、特に二酸化硫黄に対して非常に敏感で、大気質の有用な生物指標として利用されます。