Guam Flying Fox vs Ring-necked Duck

Pteropus tokudae compared with Aythya collaris

Key Differences

• Guam Flying Fox is Extinct while Ring-necked Duck is Least Concern.

Taxonomic Classification

Rank	Guam Flying Fox	Ring-necked Duck
Kingdom same	Animalia (Animals)	Animalia (Animals)
Phylum same	Chordata (Chordates)	Chordata (Chordates)
Class	Mammalia (Mammals)	Aves (Birds)
Order	Chiroptera (Bats)	Anseriformes (Anseriformes)
Family	Pteropodidae (Fruit Bats)	Anatidae
Genus	Pteropus (Flying Foxes)	Aythya
Species	Pteropus tokudae	Aythya collaris

Evolutionary Relationship

Guam Flying Fox and Ring-necked Duck share a common ancestor at the Phylum level: Chordata. (Chordates)

Conservation Status

Guam Flying Fox

EX — Extinct

Ring-necked Duck

LC — Least Concern

Physical Characteristics

Attribute	Guam Flying Fox	Ring-necked Duck
Diet	—	—
Average Lifespan	—	—
Average Length	—	—
Average Weight	—	—

Habitat & Geographic Range

Guam Flying Fox

Habitat

Typically found in diverse terrestrial and aquatic ecosystems.

Ring-necked Duck

Habitat

Typically found in various aerial, terrestrial, and aquatic environments.

Range

Widely distributed across Asia (Taiwan), Europe (5 countries), North America (United States), and South America (Colombia, Ecuador, Venezuela).

Ring-necked Duck

Ring-necked Duck (Aythya collaris) 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.