Chimney Swift vs Miller’s Mastiff Bat

Chaetura pelagica compared with Molossus pretiosus

Key Differences

• Chimney Swift is Near Threatened while Miller’s Mastiff Bat is Least Concern.

Taxonomic Classification

Rank	Chimney Swift	Miller’s Mastiff Bat
Kingdom same	Animalia (Animals)	Animalia (Animals)
Phylum same	Chordata (Chordates)	Chordata (Chordates)
Class	Aves (Birds)	Mammalia (Mammals)
Order	Apodiformes (Apodiformes)	Chiroptera (Bats)
Family	Apodidae	Molossidae
Genus	Chaetura	Molossus
Species	Chaetura pelagica	Molossus pretiosus

Evolutionary Relationship

Chimney Swift and Miller’s Mastiff Bat share a common ancestor at the Phylum level: Chordata. (Chordates)

Conservation Status

Chimney Swift

NT — Near Threatened

Miller’s Mastiff Bat

LC — Least Concern

Physical Characteristics

Attribute	Chimney Swift	Miller’s Mastiff Bat
Diet	—	—
Average Lifespan	—	—
Average Length	—	—
Average Weight	—	—

Habitat & Geographic Range

Chimney Swift

Habitat

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

Range

Widely distributed across Europe (Norway, Sweden), North America (United States), and South America (Colombia, Ecuador, Venezuela). Listed as Near Threatened, this species requires ongoing monitoring to prevent population decline.

Miller’s Mastiff Bat

Habitat

Typically found in diverse terrestrial and aquatic ecosystems.

Range

Distributed across Colombia and Venezuela.

Chimney Swift

Chimney Swift (Chaetura pelagica) is classified as Near Threatened (NT) on the IUCN Red List. Close to qualifying as threatened, with populations that may become vulnerable without conservation action.

Shared Countries

Both species can be found in 2 countries:

🇨🇴 Colombia 🇻🇪 Venezuela