Large False Serotine vs Stygian Owl

Hesperoptenus tomesi compared with Asio stygius

Key Differences

• Large False Serotine is Vulnerable while Stygian Owl is Least Concern.

Taxonomic Classification

Rank	Large False Serotine	Stygian Owl
Kingdom same	Animalia (Animals)	Animalia (Animals)
Phylum same	Chordata (Chordates)	Chordata (Chordates)
Class	Mammalia (Mammals)	Aves (Birds)
Order	Chiroptera (Bats)	Strigiformes (Owls)
Family	Vespertilionidae	Strigidae (True Owls)
Genus	Hesperoptenus	Asio
Species	Hesperoptenus tomesi	Asio stygius

Evolutionary Relationship

Large False Serotine and Stygian Owl share a common ancestor at the Phylum level: Chordata. (Chordates)

Conservation Status

Large False Serotine

VU — Vulnerable

Stygian Owl

LC — Least Concern

Physical Characteristics

Attribute	Large False Serotine	Stygian Owl
Diet	—	—
Average Lifespan	—	—
Average Length	—	—
Average Weight	—	—

Habitat & Geographic Range

Large False Serotine

Habitat

Typically found in diverse terrestrial and aquatic ecosystems.

Stygian Owl

Habitat

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

Range

Distributed across Colombia, Ecuador, Norway, and Venezuela.

Stygian Owl

Stygian Owl (Asio stygius) 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.