Lesser Noctule vs Sallow Pigmy

Nyctalus leisleri compared with Stigmella salicis

Key Differences

• Lesser Noctule is Endangered while Sallow Pigmy is Least Concern.

Taxonomic Classification

Rank	Lesser Noctule	Sallow Pigmy
Kingdom same	Animalia (Animals)	Animalia (Animals)
Phylum	Chordata (Chordates)	Arthropoda (Arthropods)
Class	Mammalia (Mammals)	Insecta (Insects)
Order	Chiroptera (Bats)	Lepidoptera (Butterflies & Moths)
Family	Vespertilionidae	Nepticulidae
Genus	Nyctalus	Stigmella
Species	Nyctalus leisleri	Stigmella salicis

Evolutionary Relationship

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

Conservation Status

Lesser Noctule

EN — Endangered

Sallow Pigmy

LC — Least Concern

Physical Characteristics

Attribute	Lesser Noctule	Sallow Pigmy
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.

Sallow Pigmy

Habitat

Typically found in virtually all terrestrial and freshwater habitats.

Range

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

Shared Countries

Both species can be found in 3 countries:

🇧🇪 Belgium 🇩🇰 Denmark 🇸🇪 Sweden