Gray Alder vs Lesser Noctule

Alnus incana compared with Nyctalus leisleri

Key Differences

• Gray Alder is Least Concern while Lesser Noctule is Endangered.

Taxonomic Classification

Rank	Gray Alder	Lesser Noctule
Kingdom	Plantae (Plants)	Animalia (Animals)
Phylum	Magnoliophyta (Flowering Plants)	Chordata (Chordates)
Class	Magnoliopsida (Dicots)	Mammalia (Mammals)
Order	Fagales (Beeches & Oaks)	Chiroptera (Bats)
Family	Betulaceae	Vespertilionidae
Genus	Alnus	Nyctalus
Species	Alnus incana	Nyctalus leisleri

Conservation Status

Gray Alder

LC — Least Concern

Lesser Noctule

EN — Endangered

Physical Characteristics

Attribute	Gray Alder	Lesser Noctule
Diet	—	—
Average Lifespan	—	—
Average Length	—	—
Average Weight	—	—

Habitat & Geographic Range

Gray Alder

Habitat

Typically found in diverse terrestrial habitats from tropical forests to temperate regions.

Range

Widely distributed across Asia (Armenia), Europe (10 countries), and North America (United States).

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.

Shared Countries

Both species can be found in 3 countries:

🇧🇪 Belgium 🇩🇰 Denmark 🇸🇪 Sweden