Lesser Noctule vs White-winged Tern

Nyctalus leisleri compared with Chlidonias leucopterus

Key Differences

• Lesser Noctule is Endangered while White-winged Tern is Not Evaluated.

Taxonomic Classification

Rank	Lesser Noctule	White-winged Tern
Kingdom same	Animalia (Animals)	Animalia (Animals)
Phylum same	Chordata (Chordates)	Chordata (Chordates)
Class	Mammalia (Mammals)	Aves (Birds)
Order	Chiroptera (Bats)	Charadriiformes (Charadriiformes)
Family	Vespertilionidae	Laridae
Genus	Nyctalus	Chlidonias
Species	Nyctalus leisleri	Chlidonias leucopterus

Evolutionary Relationship

Lesser Noctule and White-winged Tern share a common ancestor at the Phylum level: Chordata. (Chordates)

Conservation Status

Lesser Noctule

EN — Endangered

White-winged Tern

NE — Not Evaluated

Physical Characteristics

Attribute	Lesser Noctule	White-winged Tern
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.

White-winged Tern

Habitat

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

Range

Widely distributed across Asia (Taiwan), Europe (4 countries), and North America (United States).

White-winged Tern

White-winged Tern (Chlidonias leucopterus) is classified as Not Evaluated (NE) on the IUCN Red List. Not yet evaluated against IUCN Red List criteria. Conservation status remains to be determined.

Shared Countries

Both species can be found in 3 countries:

🇧🇪 Belgium 🇩🇰 Denmark 🇸🇪 Sweden