Ontong Java Flying Fox vs Ruff

Pteropus howensis compared with Calidris pugnax

Key Differences

• Ontong Java Flying Fox is Critically Endangered while Ruff is Least Concern.

Taxonomic Classification

Rank	Ontong Java 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 howensis	Calidris pugnax

Evolutionary Relationship

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

Conservation Status

Ontong Java Flying Fox

CR — Critically Endangered

Ruff

LC — Least Concern

Physical Characteristics

Attribute	Ontong Java Flying Fox	Ruff
Diet	—	—
Average Lifespan	—	—
Average Length	—	—
Average Weight	—	—

Habitat & Geographic Range

Ontong Java 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.