Lesser Noctule vs Rusty-backed Spinetail

Nyctalus leisleri compared with Cranioleuca vulpina

Key Differences

• Lesser Noctule is Endangered while Rusty-backed Spinetail is Least Concern.

Taxonomic Classification

Rank	Lesser Noctule	Rusty-backed Spinetail
Kingdom same	Animalia (Animals)	Animalia (Animals)
Phylum same	Chordata (Chordates)	Chordata (Chordates)
Class	Mammalia (Mammals)	Aves (Birds)
Order	Chiroptera (Bats)	Passeriformes (Songbirds)
Family	Vespertilionidae	Furnariidae
Genus	Nyctalus	Cranioleuca
Species	Nyctalus leisleri	Cranioleuca vulpina

Evolutionary Relationship

Lesser Noctule and Rusty-backed Spinetail share a common ancestor at the Phylum level: Chordata. (Chordates)

Conservation Status

Lesser Noctule

EN — Endangered

Rusty-backed Spinetail

LC — Least Concern

Physical Characteristics

Attribute	Lesser Noctule	Rusty-backed Spinetail
Diet	—	—
Average Lifespan	—	—
Average Length	—	—
Average Weight	—	—

Habitat & Geographic Range

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.

Rusty-backed Spinetail

Habitat

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

Range

Distributed across Colombia, Norway, and Venezuela.