灰背岸八哥 vs Coiban Mastuff Bat

Acridotheres ginginianus compared with Molossus coibensis

Taxonomic Classification

Rank	灰背岸八哥	Coiban Mastuff Bat
Kingdom same	Animalia (动物界)	Animalia (动物界)
Phylum same	Chordata (脊索动物门)	Chordata (脊索动物门)
Class	Aves (鳥綱)	Mammalia (哺乳動物)
Order	Passeriformes (雀形目)	Chiroptera (翼手目)
Family	Sturnidae	Molossidae
Genus	Acridotheres	Molossus
Species	Acridotheres ginginianus	Molossus coibensis

Evolutionary Relationship

灰背岸八哥 and Coiban Mastuff Bat share a common ancestor at the Phylum level: Chordata. (脊索动物门)

Conservation Status

灰背岸八哥

LC — Least Concern

Coiban Mastuff Bat

LC — Least Concern

Physical Characteristics

Attribute	灰背岸八哥	Coiban Mastuff Bat
Diet	—	—
Average Lifespan	—	—
Average Length	—	—
Average Weight	—	—

Habitat & Geographic Range

灰背岸八哥

Habitat

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

Range

Found across Asia (6 countries) and Europe (6 countries).

Coiban Mastuff Bat

Habitat

Typically found in diverse terrestrial and aquatic ecosystems.

Range

Distributed across Colombia, Ecuador, and Venezuela.

灰背岸八哥

岸八哥（Acridotheres ginginianus）在IUCN红色名录中被列为无危（LC）。该物种在其分布范围内广泛分布、数量丰富，种群稳定，目前没有直接的保育关注。

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.