アルゼンチンフナガモ vs トビフナガモ

Tachyeres leucocephalus compared with Tachyeres patachonicus

Key Differences

• アルゼンチンフナガモ is Vulnerable while トビフナガモ is Least Concern.

Taxonomic Classification

Rank	アルゼンチンフナガモ	トビフナガモ
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	Tachyeres	Tachyeres
Species	Tachyeres leucocephalus	Tachyeres patachonicus

Evolutionary Relationship

アルゼンチンフナガモ and トビフナガモ share a common ancestor at the Genus level: Tachyeres.

Conservation Status

アルゼンチンフナガモ

VU — Vulnerable

トビフナガモ

LC — Least Concern

Physical Characteristics

Attribute	アルゼンチンフナガモ	トビフナガモ
Diet	—	—
Average Lifespan	—	—
Average Length	—	—
Average Weight	—	—

Habitat & Geographic Range

アルゼンチンフナガモ

Habitat

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

Range

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

トビフナガモ

Habitat

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

Range

Found in Norway.

アルゼンチンフナガモ

The Chubut Steamer Duck (Tachyeres leucocephalus) is a large, flightless or near-flightless diving duck endemic to the Atlantic coast of Patagonia, Argentina, particularly in Chubut Province from which its name derives. It belongs to the genus Tachyeres, commonly known as steamer ducks due to their habit of propelling themselves across the water by flapping their short wings and paddling their large feet simultaneously, resembling a steamboat's paddle wheels. T. leucocephalus is assessed as Vulnerable by the IUCN due to its restricted range along a limited stretch of Patagonian coastline and relatively small total population. The species inhabits rocky coastlines, kelp beds, and sheltered coastal bays, feeding primarily on marine invertebrates including crustaceans, molluscs, and echinoderms obtained by diving in intertidal and subtidal zones. Like other steamer ducks, it is highly territorial, with pairs defending stretches of coastline year-round. The white-headed appearance of adult males gives the species its scientific name leucocephalus. Threats include disturbance from coastal development, oil spills, and persecution. The Chubut coastline and associated marine areas receive some conservation protection, though the species remains at risk from localized catastrophic events.

Shared Countries

Both species can be found in 1 countries:

🇳🇴 Norway