Brown eagle-ray vs Ruff

Aetomylaeus milvus compared with Calidris pugnax

Key Differences

• Brown eagle-ray is Endangered while Ruff is Least Concern.

Taxonomic Classification

Rank	Brown eagle-ray	Ruff
Kingdom same	Animalia (動物)	Animalia (動物)
Phylum same	Chordata (脊索動物)	Chordata (脊索動物)
Class	Elasmobranchii	Aves (鳥類)
Order	Myliobatiformes (トビエイ目)	Charadriiformes (チドリ目)
Family	Myliobatidae	Scolopacidae
Genus	Aetomylaeus	Calidris
Species	Aetomylaeus milvus	Calidris pugnax

Evolutionary Relationship

Brown eagle-ray and Ruff share a common ancestor at the Phylum level: Chordata. (脊索動物)

Conservation Status

Brown eagle-ray

EN — Endangered

Ruff

LC — Least Concern

Physical Characteristics

Attribute	Brown eagle-ray	Ruff
Diet	—	—
Average Lifespan	—	—
Average Length	—	—
Average Weight	—	—

Habitat & Geographic Range

Brown eagle-ray

Habitat

Native to Asia, inhabiting ecosystems characteristic of the region.

Range

Found in Taiwan. Currently classified as Endangered on the IUCN Red List, this species faces significant conservation challenges across its range.

Ruff

Habitat

Typically found in various aerial, terrestrial, and aquatic environments.

Range

Widely distributed across Asia (Taiwan), Europe (4 countries), North America (United States), and South America (Colombia, Venezuela).

Brown eagle-ray

The Brown Eagle-ray (Aetomylaeus milvus) is a species in the genus Aetomylaeus. It is currently classified as Endangered on the IUCN Red List. Native to Asia, inhabiting ecosystems characteristic of the region.

Ruff

Ruff（Calidris pugnax）は IUCN レッドリストで軽度懸念（LC）に分類されている。分布域全体に広く分布し個体数も豊富で、個体群は安定しており差し迫った保全上の懸念はない。

Shared Countries

Both species can be found in 1 countries:

🇹🇼 Taiwan