Gray-headed Flying Fox vs Green-tailed Trainbearer

Pteropus poliocephalus compared with Lesbia nuna

Key Differences

• Gray-headed Flying Fox is Vulnerable while Green-tailed Trainbearer is Least Concern.

Taxonomic Classification

Rank	Gray-headed Flying Fox	Green-tailed Trainbearer
Kingdom same	Animalia (Animals)	Animalia (Animals)
Phylum same	Chordata (Chordates)	Chordata (Chordates)
Class	Mammalia (Mammals)	Aves (Birds)
Order	Chiroptera (Bats)	Apodiformes (Apodiformes)
Family	Pteropodidae (Fruit Bats)	Trochilidae
Genus	Pteropus (Flying Foxes)	Lesbia
Species	Pteropus poliocephalus	Lesbia nuna

Evolutionary Relationship

Gray-headed Flying Fox and Green-tailed Trainbearer share a common ancestor at the Phylum level: Chordata. (Chordates)

Conservation Status

Gray-headed Flying Fox

VU — Vulnerable

Green-tailed Trainbearer

LC — Least Concern

Physical Characteristics

Attribute	Gray-headed Flying Fox	Green-tailed Trainbearer
Diet	—	—
Average Lifespan	—	—
Average Length	—	—
Average Weight	—	—

Habitat & Geographic Range

Gray-headed Flying Fox

Habitat

Typically found in diverse terrestrial and aquatic ecosystems.

Green-tailed Trainbearer

Habitat

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

Range

Distributed across Colombia, Ecuador, Norway, and Venezuela.

Green-tailed Trainbearer

A medium-sized Andean hummingbird with a long, deeply forked green tail — the longest tail relative to body size among trainbearer hummingbirds — male green-tailed trainbearers inhabit open grassland, scrub, and Andean hedgerows from Ecuador to Bolivia at elevations of 2,000–4,000 meters. Males perform aerial display flights with the ornamental tail streaming behind. Found in semi-open Andean landscapes including gardens, agricultural areas, and páramo edges where they feed at diverse flowering plants.