Large False Serotine vs Ruff

Hesperoptenus tomesi compared with Calidris pugnax

Key Differences

• Large False Serotine is Vulnerable while Ruff is Least Concern.

Taxonomic Classification

Rank	Large False Serotine	Ruff
Kingdom same	Animalia (Animals)	Animalia (Animals)
Phylum same	Chordata (Chordates)	Chordata (Chordates)
Class	Mammalia (Mammals)	Aves (Birds)
Order	Chiroptera (Bats)	Charadriiformes (Charadriiformes)
Family	Vespertilionidae	Scolopacidae
Genus	Hesperoptenus	Calidris
Species	Hesperoptenus tomesi	Calidris pugnax

Evolutionary Relationship

Large False Serotine and Ruff share a common ancestor at the Phylum level: Chordata. (Chordates)

Conservation Status

Large False Serotine

VU — Vulnerable

Ruff

LC — Least Concern

Physical Characteristics

Attribute	Large False Serotine	Ruff
Diet	—	—
Average Lifespan	—	—
Average Length	—	—
Average Weight	—	—

Habitat & Geographic Range

Large False Serotine

Habitat

Typically found in diverse terrestrial and aquatic ecosystems.

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.