Lesser Yellow-shouldered Bat vs Ruff

Sturnira nana compared with Calidris pugnax

Key Differences

• Lesser Yellow-shouldered Bat is Endangered while Ruff is Least Concern.

Taxonomic Classification

Rank	Lesser Yellow-shouldered Bat	Ruff
Kingdom same	Animalia (Animals)	Animalia (Animals)
Phylum same	Chordata (Chordates)	Chordata (Chordates)
Class	Mammalia (Mammals)	Aves (Birds)
Order	Chiroptera (Bats)	Charadriiformes (Charadriiformes)
Family	Phyllostomidae	Scolopacidae
Genus	Sturnira	Calidris
Species	Sturnira nana	Calidris pugnax

Evolutionary Relationship

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

Conservation Status

Lesser Yellow-shouldered Bat

EN — Endangered

Ruff

LC — Least Concern

Physical Characteristics

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

Habitat & Geographic 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.

Ruff

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, Venezuela).

Ruff

Ruff (Calidris pugnax) 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.