Greater Scaup vs Lesser Yellow-shouldered Bat

Aythya marila compared with Sturnira nana

Key Differences

• Greater Scaup is Vulnerable while Lesser Yellow-shouldered Bat is Endangered.

Taxonomic Classification

Rank	Greater Scaup	Lesser Yellow-shouldered Bat
Kingdom same	Animalia (Animals)	Animalia (Animals)
Phylum same	Chordata (Chordates)	Chordata (Chordates)
Class	Aves (Birds)	Mammalia (Mammals)
Order	Anseriformes (Anseriformes)	Chiroptera (Bats)
Family	Anatidae	Phyllostomidae
Genus	Aythya	Sturnira
Species	Aythya marila	Sturnira nana

Evolutionary Relationship

Greater Scaup and Lesser Yellow-shouldered Bat share a common ancestor at the Phylum level: Chordata. (Chordates)

Conservation Status

Greater Scaup

VU — Vulnerable

Lesser Yellow-shouldered Bat

EN — Endangered

Physical Characteristics

Attribute	Greater Scaup	Lesser Yellow-shouldered Bat
Diet	—	—
Average Lifespan	—	—
Average Length	—	—
Average Weight	—	—

Habitat & Geographic Range

Greater Scaup

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.

Lesser Yellow-shouldered Bat

Habitat

Typically found in diverse terrestrial and aquatic ecosystems.

Range

Found in Ecuador. Currently classified as Endangered on the IUCN Red List, this species faces significant conservation challenges across its range.

Greater Scaup

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.