Lesser Scaup vs Ouistiti a queue noire

Aythya affinis compared with Mico melanurus

Key Differences

• Lesser Scaup is Least Concern while Ouistiti a queue noire is Near Threatened.

Taxonomic Classification

Rank	Lesser Scaup	Ouistiti a queue noire
Kingdom same	Animalia (Animals)	Animalia (Animals)
Phylum same	Chordata (Chordates)	Chordata (Chordates)
Class	Aves (Birds)	Mammalia (Mammals)
Order	Anseriformes (Anseriformes)	Primates (Primates)
Family	Anatidae	Callitrichidae
Genus	Aythya	Mico
Species	Aythya affinis	Mico melanurus

Evolutionary Relationship

Lesser Scaup and Ouistiti a queue noire share a common ancestor at the Phylum level: Chordata. (Chordates)

Conservation Status

Lesser Scaup

LC — Least Concern

Ouistiti a queue noire

NT — Near Threatened

Physical Characteristics

Attribute	Lesser Scaup	Ouistiti a queue noire
Diet	—	—
Average Lifespan	—	—
Average Length	—	—
Average Weight	—	—

Habitat & Geographic Range

Lesser Scaup

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).

Ouistiti a queue noire

Habitat

Typically found in diverse terrestrial and aquatic ecosystems.

Lesser Scaup

Lesser Scaup (Aythya affinis) is classified as Least Concern (LC) on the IUCN Red List. Widespread and abundant across its range, with stable populations and no immediate conservation concerns.