Bermuda Saw-whet Owl vs Coiban Mastuff Bat

Aegolius gradyi compared with Molossus coibensis

Key Differences

• Bermuda Saw-whet Owl is Extinct while Coiban Mastuff Bat is Least Concern.

Taxonomic Classification

Rank	Bermuda Saw-whet Owl	Coiban Mastuff Bat
Kingdom same	Animalia (प्राणी)	Animalia (प्राणी)
Phylum same	Chordata (रज्जुकी)	Chordata (रज्जुकी)
Class	Aves (पक्षी)	Mammalia (स्तनधारी)
Order	Strigiformes (उल्लू)	Chiroptera (चमगादड़)
Family	Strigidae (True Owls)	Molossidae
Genus	Aegolius	Molossus
Species	Aegolius gradyi	Molossus coibensis

Evolutionary Relationship

Bermuda Saw-whet Owl and Coiban Mastuff Bat share a common ancestor at the Phylum level: Chordata. (रज्जुकी)

Conservation Status

Bermuda Saw-whet Owl

EX — Extinct

Coiban Mastuff Bat

LC — Least Concern

Physical Characteristics

Attribute	Bermuda Saw-whet Owl	Coiban Mastuff Bat
Diet	—	—
Average Lifespan	—	—
Average Length	—	—
Average Weight	—	—

Habitat & Geographic Range

Bermuda Saw-whet Owl

Habitat

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

Range

Found in Norway.

Coiban Mastuff Bat

Habitat

Typically found in diverse terrestrial and aquatic ecosystems.

Range

Distributed across Colombia, Ecuador, and Venezuela.

Bermuda Saw-whet Owl

The Bermuda Saw-whet Owl (Aegolius gradyi) is a species in the genus Aegolius. It is currently classified as Extinct on the IUCN Red List. Typically found in various aerial, terrestrial, and aquatic environments.

Coiban Mastuff Bat

The Coiban Mastuff Bat (Molossus coibensis) is a small free-tailed bat in the family Molossidae, named for Coiba Island off the Pacific coast of Panama, where specimens were first collected. Members of the genus Molossus are robust, fast-flying insectivores adapted to open-air foraging above the forest canopy and over water, characterised by narrow wings and a tail that extends beyond the patagium (wing membrane). Molossus coibensis inhabits lowland tropical forests and adjacent open habitats in Central America and northwestern South America, with confirmed records from Colombia, Ecuador, Venezuela, and Panama, indicating a distributional range that extends well beyond its type locality on Coiba Island. Like other mastiff bats, it roosts in crevices within buildings, rock faces, and hollow trees, emerging at dusk to pursue aerial insects at speed. The species feeds primarily on large beetles, moths, and other night-flying insects, typically hunted high above the forest. It is assessed as Least Concern by the IUCN based on its relatively wide range and tolerance of modified habitats. Molossus coibensis was long treated as a subspecies of Molossus molossus before being recognised as a distinct species based on morphological and molecular evidence. Ecological and life-history data specific to this taxon remain limited.