小加拿大雁 vs 夏威夷雁〔黃頸黑雁〕

Branta hutchinsii compared with Branta sandvicensis

Key Differences

• 小加拿大雁 is Not Evaluated while 夏威夷雁〔黃頸黑雁〕 is Near Threatened.

Taxonomic Classification

Rank	小加拿大雁	夏威夷雁〔黃頸黑雁〕
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	Branta	Branta
Species	Branta hutchinsii	Branta sandvicensis

Evolutionary Relationship

小加拿大雁 and 夏威夷雁〔黃頸黑雁〕 share a common ancestor at the Genus level: Branta.

Conservation Status

小加拿大雁

NE — Not Evaluated

夏威夷雁〔黃頸黑雁〕

NT — Near Threatened

Physical Characteristics

Attribute	小加拿大雁	夏威夷雁〔黃頸黑雁〕
Diet	—	—
Average Lifespan	—	—
Average Length	—	—
Average Weight	—	—

Habitat & Geographic Range

小加拿大雁

Habitat

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

Range

Widely distributed across Asia (Taiwan), Europe (8 countries), and North America (United States).

夏威夷雁〔黃頸黑雁〕

Habitat

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

Range

Found across Asia (United Arab Emirates) and Europe (5 countries). Listed as Near Threatened, this species requires ongoing monitoring to prevent population decline.

小加拿大雁

小加拿大雁（Branta hutchinsii）在IUCN红色名录中被列为未评估（NE）。尚未依照IUCN红色名录标准进行评估，保护状况有待确定。

夏威夷雁〔黃頸黑雁〕

夏威夷雁（Branta sandvicensis）在IUCN红色名录中被列为近危（NT）。接近濒危标准，若无保育措施，种群可能变得脆弱。

Shared Countries

Both species can be found in 5 countries:

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