ウミアイサ vs コウライアイサ

Mergus serrator compared with Mergus squamatus

Key Differences

• ウミアイサ is Least Concern while コウライアイサ is Endangered.

Taxonomic Classification

Rank	ウミアイサ	コウライアイサ
Kingdom same	Animalia (動物)	Animalia (動物)
Phylum same	Chordata (脊索動物)	Chordata (脊索動物)
Class same	Aves (鳥類)	Aves (鳥類)
Order same	Anseriformes (カモ目)	Anseriformes (カモ目)
Family same	Anatidae	Anatidae
Genus same	Mergus	Mergus
Species	Mergus serrator	Mergus squamatus

Evolutionary Relationship

ウミアイサ and コウライアイサ share a common ancestor at the Genus level: Mergus.

Conservation Status

ウミアイサ

LC — Least Concern

コウライアイサ

EN — Endangered

Physical Characteristics

Attribute	ウミアイサ	コウライアイサ
Diet	—	—
Average Lifespan	—	—
Average Length	—	—
Average Weight	—	—

Habitat & Geographic Range

ウミアイサ

Habitat

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

Range

Widely distributed across Asia (Taiwan), Europe (5 countries), North America (United States), and South America (Colombia).

コウライアイサ

Habitat

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

Range

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

ウミアイサ

ウミアイサ（Mergus serrator）はIUCNレッドリストで軽度懸念（LC）に分類されている。分布域全体で広く豊富に生息し、個体群は安定しており、直接的な保全上の懸念はない。

Shared Countries

Both species can be found in 2 countries:

🇳🇴 Norway 🇹🇼 Taiwan