zarro-grande vs negrelho

Aythya valisineria compared with Aythya marila

Key Differences

• zarro-grande is Not Evaluated while negrelho is Vulnerable.

Taxonomic Classification

Rank	zarro-grande	negrelho
Kingdom same	Animalia (Animals)	Animalia (Animals)
Phylum same	Chordata (cordados)	Chordata (cordados)
Class same	Aves (ave)	Aves (ave)
Order same	Anseriformes (Anseriformes)	Anseriformes (Anseriformes)
Family same	Anatidae	Anatidae
Genus same	Aythya	Aythya
Species	Aythya valisineria	Aythya marila

Evolutionary Relationship

zarro-grande and negrelho share a common ancestor at the Genus level: Aythya.

Conservation Status

zarro-grande

NE — Not Evaluated

negrelho

VU — Vulnerable

Physical Characteristics

Attribute	zarro-grande	negrelho
Diet	—	—
Average Lifespan	—	—
Average Length	—	—
Average Weight	—	—

Habitat & Geographic Range

zarro-grande

Habitat

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

Range

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

negrelho

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.

zarro-grande

O pato-coscoroba-americano (Aythya valisineria) está classificado como Não Avaliado (NE) na Lista Vermelha da IUCN. Ainda não avaliado segundo os critérios da Lista Vermelha da IUCN. O status de conservação ainda será determinado.

negrelho

O zarro-bastardo (Aythya marila) está classificado como Vulnerável (VU) na Lista Vermelha da UICN. Enfrenta alto risco de ameaça na natureza, com populações em declínio e pressão crescente sobre seu habitat.

Shared Countries

Both species can be found in 4 countries:

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