Blue star vs Green-tailed Trainbearer

Amsonia orientalis compared with Lesbia nuna

Key Differences

• Blue star is Critically Endangered while Green-tailed Trainbearer is Least Concern.

Taxonomic Classification

Rank	Blue star	Green-tailed Trainbearer
Kingdom	Plantae (Plants)	Animalia (Animals)
Phylum	Magnoliophyta (Flowering Plants)	Chordata (Chordates)
Class	Magnoliopsida (Dicots)	Aves (Birds)
Order	Gentianales (Gentianales)	Apodiformes (Apodiformes)
Family	Apocynaceae	Trochilidae
Genus	Amsonia	Lesbia
Species	Amsonia orientalis	Lesbia nuna

Conservation Status

Blue star

CR — Critically Endangered

Green-tailed Trainbearer

LC — Least Concern

Physical Characteristics

Attribute	Blue star	Green-tailed Trainbearer
Diet	—	—
Average Lifespan	—	—
Average Length	—	—
Average Weight	—	—

Habitat & Geographic Range

Blue star

Habitat

Typically found in diverse terrestrial habitats from tropical forests to temperate regions.

Green-tailed Trainbearer

Habitat

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

Range

Distributed across Colombia, Ecuador, Norway, and Venezuela.

Blue star

The Blue star (Amsonia orientalis) is a species in the genus Amsonia. It is currently classified as Critically Endangered on the IUCN Red List. Typically found in diverse terrestrial habitats from tropical forests to temperate regions.

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.