Blue-tailed Emerald vs Lesser Noctule

Chlorostilbon mellisugus compared with Nyctalus leisleri

Key Differences

• Blue-tailed Emerald is Least Concern while Lesser Noctule is Endangered.

Taxonomic Classification

Rank	Blue-tailed Emerald	Lesser Noctule
Kingdom same	Animalia (Animals)	Animalia (Animals)
Phylum same	Chordata (Chordates)	Chordata (Chordates)
Class	Aves (Birds)	Mammalia (Mammals)
Order	Apodiformes (Apodiformes)	Chiroptera (Bats)
Family	Trochilidae	Vespertilionidae
Genus	Chlorostilbon	Nyctalus
Species	Chlorostilbon mellisugus	Nyctalus leisleri

Evolutionary Relationship

Blue-tailed Emerald and Lesser Noctule share a common ancestor at the Phylum level: Chordata. (Chordates)

Conservation Status

Blue-tailed Emerald

LC — Least Concern

Lesser Noctule

EN — Endangered

Physical Characteristics

Attribute	Blue-tailed Emerald	Lesser Noctule
Diet	—	—
Average Lifespan	—	—
Average Length	—	—
Average Weight	—	—

Habitat & Geographic Range

Blue-tailed Emerald

Habitat

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

Range

Distributed across Colombia, Ecuador, Norway, and Venezuela.

Lesser Noctule

Habitat

Typically found in diverse terrestrial and aquatic ecosystems.

Range

Distributed across Belgium, Denmark, Luxembourg, Sweden, and Ukraine. Currently classified as Endangered on the IUCN Red List, this species faces significant conservation challenges across its range.

Blue-tailed Emerald

A small, jewel-like hummingbird named for the brilliant blue-green iridescence of the tail feathers, male blue-tailed emeralds display glittering green plumage throughout with a contrasting deep blue-green forked tail. Found in lowland tropical forest edges, savannas, and gardens from Venezuela and Colombia east to Trinidad and south to Bolivia and Brazil. They are common in disturbed and secondary habitats, making them relatively resilient to habitat modification compared to more specialized hummingbirds.