Lesser Scaup vs Mentawai Squirrel

Aythya affinis compared with Callosciurus melanogaster

Key Differences

• Lesser Scaup is Least Concern while Mentawai Squirrel is Vulnerable.

Taxonomic Classification

Rank	Lesser Scaup	Mentawai Squirrel
Kingdom same	Animalia (Animals)	Animalia (Animals)
Phylum same	Chordata (Chordates)	Chordata (Chordates)
Class	Aves (Birds)	Mammalia (Mammals)
Order	Anseriformes (Anseriformes)	Rodentia (Rodents)
Family	Anatidae	Sciuridae (Squirrels)
Genus	Aythya	Callosciurus
Species	Aythya affinis	Callosciurus melanogaster

Evolutionary Relationship

Lesser Scaup and Mentawai Squirrel share a common ancestor at the Phylum level: Chordata. (Chordates)

Conservation Status

Lesser Scaup

LC — Least Concern

Mentawai Squirrel

VU — Vulnerable

Physical Characteristics

Attribute	Lesser Scaup	Mentawai Squirrel
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).

Mentawai Squirrel

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.