Canvasback vs เป็ดดำหลังขาว

Aythya valisineria compared with Aythya marila

Key Differences

• Canvasback is Not Evaluated while เป็ดดำหลังขาว is Vulnerable.

Taxonomic Classification

Rank	Canvasback	เป็ดดำหลังขาว
Kingdom same	Animalia (สัตว์)	Animalia (สัตว์)
Phylum same	Chordata (สัตว์มีแกนสันหลัง)	Chordata (สัตว์มีแกนสันหลัง)
Class same	Aves (นก)	Aves (นก)
Order same	Anseriformes (อันดับห่าน)	Anseriformes (อันดับห่าน)
Family same	Anatidae	Anatidae
Genus same	Aythya	Aythya
Species	Aythya valisineria	Aythya marila

Evolutionary Relationship

Canvasback and เป็ดดำหลังขาว share a common ancestor at the Genus level: Aythya.

Conservation Status

Canvasback

NE — Not Evaluated

เป็ดดำหลังขาว

VU — Vulnerable

Physical Characteristics

Attribute	Canvasback	เป็ดดำหลังขาว
Diet	—	—
Average Lifespan	—	—
Average Length	—	—
Average Weight	—	—

Habitat & Geographic Range

Canvasback

Habitat

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

Range

Widely distributed across Asia (Taiwan), Europe (6 countries), and North America (United States).

เป็ดดำหลังขาว

Habitat

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

Range

Distributed across Belgium, Denmark, Norway, Sweden, and United States. Currently classified as Vulnerable on the IUCN Red List, this species faces significant conservation challenges across its range.

Canvasback

Canvasback (Aythya valisineria) is classified as Not Evaluated (NE) on the IUCN Red List. Not yet evaluated against IUCN Red List criteria. Conservation status remains to be determined.

เป็ดดำหลังขาว

Greater Scaup (Aythya marila) is classified as Vulnerable (VU) on the IUCN Red List. Facing a high risk of endangerment in the wild, with declining populations and increasing habitat pressure.

Shared Countries

Both species can be found in 4 countries:

🇧🇪 Belgium 🇳🇴 Norway 🇸🇪 Sweden 🇺🇸 United States