褐秋沙鸭 vs 紅胸秋沙

Mergus octosetaceus compared with Mergus serrator

Key Differences

• 褐秋沙鸭 is Critically Endangered while 紅胸秋沙 is Least Concern.

Taxonomic Classification

Rank	褐秋沙鸭	紅胸秋沙
Kingdom same	Animalia (动物界)	Animalia (动物界)
Phylum same	Chordata (脊索动物门)	Chordata (脊索动物门)
Class same	Aves (鳥綱)	Aves (鳥綱)
Order same	Anseriformes (雁形目)	Anseriformes (雁形目)
Family same	Anatidae	Anatidae
Genus same	Mergus	Mergus
Species	Mergus octosetaceus	Mergus serrator

Evolutionary Relationship

褐秋沙鸭 and 紅胸秋沙 share a common ancestor at the Genus level: Mergus.

Conservation Status

褐秋沙鸭

CR — Critically Endangered

紅胸秋沙

LC — Least Concern

Physical Characteristics

Attribute	褐秋沙鸭	紅胸秋沙
Diet	—	—
Average Lifespan	—	—
Average Length	—	—
Average Weight	—	—

Habitat & Geographic Range

褐秋沙鸭

Habitat

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

Range

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

紅胸秋沙

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).

褐秋沙鸭

The Brazilian Merganser (Mergus octosetaceus) is a species in the genus Mergus. It is currently classified as Critically Endangered on the IUCN Red List. Typically found in various aerial, terrestrial, and aquatic environments.

紅胸秋沙

红胸秋沙鸭（Mergus serrator）在IUCN红色名录中被列为无危（LC）。在其分布范围内广泛而丰富，种群稳定，无直接保育问题。

Shared Countries

Both species can be found in 1 countries:

🇳🇴 Norway