Lesser Noctule vs Sirystes

Nyctalus leisleri compared with Sirystes sibilator

Key Differences

• Lesser Noctule is Endangered while Sirystes is Least Concern.

Taxonomic Classification

Rank	Lesser Noctule	Sirystes
Kingdom same	Animalia (Animals)	Animalia (Animals)
Phylum same	Chordata (Chordates)	Chordata (Chordates)
Class	Mammalia (Mammals)	Aves (Birds)
Order	Chiroptera (Bats)	Passeriformes (Songbirds)
Family	Vespertilionidae	Tyrannidae
Genus	Nyctalus	Sirystes
Species	Nyctalus leisleri	Sirystes sibilator

Evolutionary Relationship

Lesser Noctule and Sirystes share a common ancestor at the Phylum level: Chordata. (Chordates)

Conservation Status

Lesser Noctule

EN — Endangered

Sirystes

LC — Least Concern

Physical Characteristics

Attribute	Lesser Noctule	Sirystes
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.

Sirystes

Habitat

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

Range

Distributed across Colombia and Norway.