Lesser Noctule vs Window Gnat

Nyctalus leisleri compared with Sylvicola fenestralis

Key Differences

• Lesser Noctule is Endangered while Window Gnat is Least Concern.

Taxonomic Classification

Rank	Lesser Noctule	Window Gnat
Kingdom same	Animalia (Animals)	Animalia (Animals)
Phylum	Chordata (Chordates)	Arthropoda (Arthropods)
Class	Mammalia (Mammals)	Insecta (Insects)
Order	Chiroptera (Bats)	Diptera (Diptera)
Family	Vespertilionidae	Anisopodidae
Genus	Nyctalus	Sylvicola
Species	Nyctalus leisleri	Sylvicola fenestralis

Evolutionary Relationship

Lesser Noctule and Window Gnat share a common ancestor at the Kingdom level: Animalia. (Animals)

Conservation Status

Lesser Noctule

EN — Endangered

Window Gnat

LC — Least Concern

Physical Characteristics

Attribute	Lesser Noctule	Window Gnat
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.

Window Gnat

Habitat

Typically found in virtually all terrestrial and freshwater habitats.

Range

Distributed across Denmark, Norway, Sweden, and United States.

Shared Countries

Both species can be found in 2 countries:

🇩🇰 Denmark 🇸🇪 Sweden