Asian Openbill vs Lesser Noctule

Anastomus oscitans compared with Nyctalus leisleri

Key Differences

• Asian Openbill is Least Concern while Lesser Noctule is Endangered.

Taxonomic Classification

Rank	Asian Openbill	Lesser Noctule
Kingdom same	Animalia (Animals)	Animalia (Animals)
Phylum same	Chordata (Chordates)	Chordata (Chordates)
Class	Aves (Birds)	Mammalia (Mammals)
Order	Ciconiiformes (Ciconiiformes)	Chiroptera (Bats)
Family	Ciconiidae	Vespertilionidae
Genus	Anastomus	Nyctalus
Species	Anastomus oscitans	Nyctalus leisleri

Evolutionary Relationship

Asian Openbill and Lesser Noctule share a common ancestor at the Phylum level: Chordata. (Chordates)

Conservation Status

Asian Openbill

LC — Least Concern

Lesser Noctule

EN — Endangered

Physical Characteristics

Attribute	Asian Openbill	Lesser Noctule
Diet	—	—
Average Lifespan	—	—
Average Length	—	—
Average Weight	—	—

Habitat & Geographic Range

Asian Openbill

Habitat

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

Range

Found in Norway.

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.

Asian Openbill

The Asian Openbill (Anastomus oscitans) is a species in the genus Anastomus. It is currently classified as Least Concern on the IUCN Red List. Typically found in various aerial, terrestrial, and aquatic environments. Found in Norway.