Kosrae Flying Fox vs Ruff

Pteropus ualanus compared with Calidris pugnax

Key Differences

• Kosrae Flying Fox is Endangered while Ruff is Least Concern.

Taxonomic Classification

Rank	Kosrae Flying Fox	Ruff
Kingdom same	Animalia (Animals)	Animalia (Animals)
Phylum same	Chordata (Chordates)	Chordata (Chordates)
Class	Mammalia (Mammals)	Aves (Birds)
Order	Chiroptera (Bats)	Charadriiformes (Charadriiformes)
Family	Pteropodidae (Fruit Bats)	Scolopacidae
Genus	Pteropus (Flying Foxes)	Calidris
Species	Pteropus ualanus	Calidris pugnax

Evolutionary Relationship

Kosrae Flying Fox and Ruff share a common ancestor at the Phylum level: Chordata. (Chordates)

Conservation Status

Kosrae Flying Fox

EN — Endangered

Ruff

LC — Least Concern

Physical Characteristics

Attribute	Kosrae Flying Fox	Ruff
Diet	—	—
Average Lifespan	—	—
Average Length	—	—
Average Weight	—	—

Habitat & Geographic Range

Kosrae Flying Fox

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.