Lesser Noctule vs Olive-headed Weaver

Nyctalus leisleri compared with Ploceus olivaceiceps

Key Differences

• Lesser Noctule is Endangered while Olive-headed Weaver is Near Threatened.

Taxonomic Classification

Rank	Lesser Noctule	Olive-headed Weaver
Kingdom same	Animalia (Animals)	Animalia (Animals)
Phylum same	Chordata (Chordates)	Chordata (Chordates)
Class	Mammalia (Mammals)	Aves (Birds)
Order	Chiroptera (Bats)	Passeriformes (Songbirds)
Family	Vespertilionidae	Ploceidae
Genus	Nyctalus	Ploceus
Species	Nyctalus leisleri	Ploceus olivaceiceps

Evolutionary Relationship

Lesser Noctule and Olive-headed Weaver share a common ancestor at the Phylum level: Chordata. (Chordates)

Conservation Status

Lesser Noctule

EN — Endangered

Olive-headed Weaver

NT — Near Threatened

Physical Characteristics

Attribute	Lesser Noctule	Olive-headed Weaver
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.

Olive-headed Weaver

Habitat

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

Range

Found in Norway. Listed as Near Threatened, this species requires ongoing monitoring to prevent population decline.