Miller’s Mastiff Bat vs Thick-billed Murre

Molossus pretiosus compared with Uria lomvia

Key Differences

• Miller’s Mastiff Bat is Least Concern while Thick-billed Murre is Endangered.

Taxonomic Classification

Rank	Miller’s Mastiff Bat	Thick-billed Murre
Kingdom same	Animalia (Animals)	Animalia (Animals)
Phylum same	Chordata (Chordates)	Chordata (Chordates)
Class	Mammalia (Mammals)	Aves (Birds)
Order	Chiroptera (Bats)	Charadriiformes (Charadriiformes)
Family	Molossidae	Alcidae
Genus	Molossus	Uria
Species	Molossus pretiosus	Uria lomvia

Evolutionary Relationship

Miller’s Mastiff Bat and Thick-billed Murre share a common ancestor at the Phylum level: Chordata. (Chordates)

Conservation Status

Miller’s Mastiff Bat

LC — Least Concern

Thick-billed Murre

EN — Endangered

Physical Characteristics

Attribute	Miller’s Mastiff Bat	Thick-billed Murre
Diet	—	—
Average Lifespan	—	—
Average Length	—	—
Average Weight	—	—

Habitat & Geographic Range

Miller’s Mastiff Bat

Habitat

Typically found in diverse terrestrial and aquatic ecosystems.

Range

Distributed across Colombia and Venezuela.

Thick-billed Murre

Habitat

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

Range

Distributed across Belgium, Denmark, Norway, Sweden, and United States. Currently classified as Endangered on the IUCN Red List, this species faces significant conservation challenges across its range.