Kleiner Abendsegler vs Tufted Button

Nyctalus leisleri compared with Acleris cristana

Key Differences

• Kleiner Abendsegler is Endangered while Tufted Button is Least Concern.

Taxonomic Classification

Rank	Kleiner Abendsegler	Tufted Button
Kingdom same	Animalia (Tier)	Animalia (Tier)
Phylum	Chordata (Chordatiere)	Arthropoda (Gliederfüßer)
Class	Mammalia (Säugetiere)	Insecta (Insekten)
Order	Chiroptera (Fledertiere)	Lepidoptera (Schmetterlinge)
Family	Vespertilionidae	Tortricidae
Genus	Nyctalus	Acleris
Species	Nyctalus leisleri	Acleris cristana

Evolutionary Relationship

Kleiner Abendsegler and Tufted Button share a common ancestor at the Kingdom level: Animalia. (Tier)

Conservation Status

Kleiner Abendsegler

EN — Endangered

Tufted Button

LC — Least Concern

Physical Characteristics

Attribute	Kleiner Abendsegler	Tufted Button
Diet	—	—
Average Lifespan	—	—
Average Length	—	—
Average Weight	—	—

Habitat & Geographic Range

Kleiner Abendsegler

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.

Tufted Button

Habitat

Typically found in virtually all terrestrial and freshwater habitats.

Range

Distributed across Belgium, Denmark, Norway, Sweden, and Taiwan.

Shared Countries

Both species can be found in 3 countries:

🇧🇪 Belgium 🇩🇰 Denmark 🇸🇪 Sweden