Graceful Laucha vs Green-tailed Trainbearer

Calomys lepidus compared with Lesbia nuna

Taxonomic Classification

Rank	Graceful Laucha	Green-tailed Trainbearer
Kingdom same	Animalia (Animals)	Animalia (Animals)
Phylum same	Chordata (Chordates)	Chordata (Chordates)
Class	Mammalia (Mammals)	Aves (Birds)
Order	Rodentia (Rodents)	Apodiformes (Apodiformes)
Family	Cricetidae	Trochilidae
Genus	Calomys	Lesbia
Species	Calomys lepidus	Lesbia nuna

Evolutionary Relationship

Graceful Laucha and Green-tailed Trainbearer share a common ancestor at the Phylum level: Chordata. (Chordates)

Conservation Status

Graceful Laucha

LC — Least Concern

Green-tailed Trainbearer

LC — Least Concern

Physical Characteristics

Attribute	Graceful Laucha	Green-tailed Trainbearer
Diet	—	—
Average Lifespan	—	—
Average Length	—	—
Average Weight	—	—

Habitat & Geographic Range

Graceful Laucha

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.