Harmless Serotine vs Least Bittern

Eptesicus innoxius compared with Ixobrychus exilis

Key Differences

• Harmless Serotine is Near Threatened while Least Bittern is Least Concern.

Taxonomic Classification

Rank	Harmless Serotine	Least Bittern
Kingdom same	Animalia (Animals)	Animalia (Animals)
Phylum same	Chordata (Chordates)	Chordata (Chordates)
Class	Mammalia (Mammals)	Aves (Birds)
Order	Chiroptera (Bats)	Pelecaniformes (Pelecaniformes)
Family	Vespertilionidae	Ardeidae
Genus	Eptesicus	Ixobrychus
Species	Eptesicus innoxius	Ixobrychus exilis

Evolutionary Relationship

Harmless Serotine and Least Bittern share a common ancestor at the Phylum level: Chordata. (Chordates)

Conservation Status

Harmless Serotine

NT — Near Threatened

Least Bittern

LC — Least Concern

Physical Characteristics

Attribute	Harmless Serotine	Least Bittern
Diet	—	—
Average Lifespan	—	—
Average Length	—	—
Average Weight	—	—

Habitat & Geographic Range

Harmless Serotine

Habitat

Typically found in diverse terrestrial and aquatic ecosystems.

Range

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

Least Bittern

Habitat

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

Range

Distributed across Colombia, Ecuador, Norway, United States, and Venezuela.

Least Bittern

Least Bittern (Ixobrychus exilis) is classified as Least Concern (LC) on the IUCN Red List. Widespread and abundant across its range, with stable populations and no immediate conservation concerns.

Shared Countries

Both species can be found in 1 countries:

🇪🇨 Ecuador