アオクビコガモ vs レイサンマガモ

Anas castanea compared with Anas laysanensis

Key Differences

• アオクビコガモ is Least Concern while レイサンマガモ is Critically Endangered.

Taxonomic Classification

Rank	アオクビコガモ	レイサンマガモ
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	Anas	Anas
Species	Anas castanea	Anas laysanensis

Evolutionary Relationship

アオクビコガモ and レイサンマガモ share a common ancestor at the Genus level: Anas.

Conservation Status

アオクビコガモ

LC — Least Concern

レイサンマガモ

CR — Critically Endangered

Physical Characteristics

Attribute	アオクビコガモ	レイサンマガモ
Diet	—	—
Average Lifespan	—	—
Average Length	—	—
Average Weight	—	—

Habitat & Geographic Range

アオクビコガモ

Habitat

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

Range

Found across Europe (8 countries).

レイサンマガモ

Habitat

Found across multiple habitat types including temperate broadleaf and mixed forests, temperate coniferous forests, and Mediterranean forests and woodlands within the Palearctic biogeographic realm. Populations are also found in montane and highland environments at higher elevations.

Range

Distributed across Belgium, France, Netherlands, Norway, and United Kingdom. Currently classified as Critically Endangered on the IUCN Red List, this species faces significant conservation challenges across its range.

アオクビコガモ

クリコガモ（Anas castanea）はIUCNレッドリストで軽度懸念（LC）に分類される。分布域全体に広く生息し個体数は豊富で、安定した個体群を持ち、即座の保全上の懸念はない。

レイサンマガモ

レイサンガモ（Anas laysanensis）はIUCNレッドリストで絶滅寸前（CR）に分類されています。深刻な個体数減少と生息地の喪失により、野生での絶滅リスクが極めて高い種です。

Shared Countries

Both species can be found in 5 countries:

🇧🇪 Belgium 🇫🇷 France 🇳🇱 Netherlands 🇳🇴 Norway 🇬🇧 United Kingdom