Azores Noctule vs Lesser Siren

Nyctalus azoreum compared with Siren intermedia

Key Differences

• Azores Noctule is Vulnerable while Lesser Siren is Least Concern.

Taxonomic Classification

Rank	Azores Noctule	Lesser Siren
Kingdom same	Animalia (Animals)	Animalia (Animals)
Phylum same	Chordata (Chordates)	Chordata (Chordates)
Class	Mammalia (Mammals)	Amphibia (Amphibians)
Order	Chiroptera (Bats)	Caudata (Caudata)
Family	Vespertilionidae	Sirenidae
Genus	Nyctalus	Siren
Species	Nyctalus azoreum	Siren intermedia

Evolutionary Relationship

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

Conservation Status

Azores Noctule

VU — Vulnerable

Lesser Siren

LC — Least Concern

Physical Characteristics

Attribute	Azores Noctule	Lesser Siren
Diet	—	—
Average Lifespan	—	—
Average Length	—	—
Average Weight	—	—

Habitat & Geographic Range

Azores Noctule

Habitat

Typically found in diverse terrestrial and aquatic ecosystems.

Range

Found in Portugal. Currently classified as Vulnerable on the IUCN Red List, this species faces significant conservation challenges across its range.

Lesser Siren

Habitat

Typically found in freshwater habitats, moist forests, and wetlands.

Range

Distributed across Belgium and Mexico.

Azores Noctule

The Azores Noctule (Nyctalus azoreum) is a species in the genus Nyctalus. It is currently classified as Vulnerable on the IUCN Red List. Typically found in diverse terrestrial and aquatic ecosystems.