zarro-de-baer vs negrelho-americano

Aythya baeri compared with Aythya affinis

Key Differences

• zarro-de-baer is Critically Endangered while negrelho-americano is Least Concern.

Taxonomic Classification

Rank	zarro-de-baer	negrelho-americano
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 baeri	Aythya affinis

Evolutionary Relationship

zarro-de-baer and negrelho-americano share a common ancestor at the Genus level: Aythya.

Conservation Status

zarro-de-baer

CR — Critically Endangered

negrelho-americano

LC — Least Concern

Physical Characteristics

Attribute	zarro-de-baer	negrelho-americano
Diet	—	—
Average Lifespan	—	—
Average Length	—	—
Average Weight	—	—

Habitat & Geographic Range

zarro-de-baer

Habitat

Found across multiple habitat types including tropical and subtropical moist broadleaf forests, temperate broadleaf and mixed forests, and temperate coniferous forests, among 4 distinct biome types spanning the Indomalayan and Palearctic realms. Populations are also found in montane and highland environments at higher elevations.

Range

Found across Asia (Taiwan) and Europe (5 countries). Currently classified as Critically Endangered on the IUCN Red List, this species faces significant conservation challenges across its range.

negrelho-americano

Habitat

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

Range

Widely distributed across Asia (Taiwan), Europe (4 countries), North America (United States), and South America (Colombia, Ecuador, Venezuela).

zarro-de-baer

The Baer's Pochard (Aythya baeri) is a species in the genus Aythya. It is currently classified as Critically Endangered on the IUCN Red List. Found across multiple habitat types including tropical and subtropical moist broadleaf forests, temperate broadleaf and mixed forests, and temperate coniferous forests, among 4 distinct biome types spanning the Indomalayan and Palearctic re.

negrelho-americano

O Mergulhão-menor (Aythya affinis) está classificado como Menos Preocupante (LC) na Lista Vermelha da IUCN. É uma espécie amplamente distribuída e abundante em sua área de ocorrência, com populações estáveis e sem preocupações imediatas de conservação.

Shared Countries

Both species can be found in 3 countries:

🇧🇪 Belgium 🇳🇴 Norway 🇹🇼 Taiwan