Aratathomas's Yellow-shouldered Bat vs Engoulevent de Caroline

Sturnira aratathomasi compared with Antrostomus carolinensis

Key Differences

• Aratathomas's Yellow-shouldered Bat is Near Threatened while Engoulevent de Caroline is Least Concern.

Taxonomic Classification

Rank	Aratathomas's Yellow-shouldered Bat	Engoulevent de Caroline
Kingdom same	Animalia (animal)	Animalia (animal)
Phylum same	Chordata (Chordates)	Chordata (Chordates)
Class	Mammalia (mammifères)	Aves (oiseau)
Order	Chiroptera (Bats)	Caprimulgiformes (Caprimulgiformes)
Family	Phyllostomidae	Caprimulgidae
Genus	Sturnira	Antrostomus
Species	Sturnira aratathomasi	Antrostomus carolinensis

Evolutionary Relationship

Aratathomas's Yellow-shouldered Bat and Engoulevent de Caroline share a common ancestor at the Phylum level: Chordata. (Chordates)

Conservation Status

Aratathomas's Yellow-shouldered Bat

NT — Near Threatened

Engoulevent de Caroline

LC — Least Concern

Physical Characteristics

Attribute	Aratathomas's Yellow-shouldered Bat	Engoulevent de Caroline
Diet	—	—
Average Lifespan	—	—
Average Length	—	—
Average Weight	—	—

Habitat & Geographic Range

Aratathomas's Yellow-shouldered Bat

Habitat

Typically found in diverse terrestrial and aquatic ecosystems.

Range

Distributed across Colombia, Ecuador, and Venezuela. Listed as Near Threatened, this species requires ongoing monitoring to prevent population decline.

Engoulevent de Caroline

Habitat

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

Range

Distributed across Colombia, Norway, and Venezuela.

Aratathomas's Yellow-shouldered Bat

The Aratathomas's Yellow-shouldered Bat (Sturnira aratathomasi) is a species in the genus Sturnira. It is currently classified as Near Threatened on the IUCN Red List. Typically found in diverse terrestrial and aquatic ecosystems.

Engoulevent de Caroline

The Chuck-will's-widow (Antrostomus carolinensis) is the largest nightjar in North America, named for its distinctive far-carrying call — a resonant four-syllable whistle repeated persistently on warm nights. It breeds across the southeastern United States, from the Atlantic coastal plain through the Gulf states and up the Mississippi Valley to southern Indiana and Kansas. The species migrates southward in autumn to winter quarters in the Caribbean, Central America, and northern South America. Like all nightjars, it is a crepuscular and nocturnal insectivore, capturing large moths, beetles, and other flying insects in flight using its enormous, bristle-fringed gape. By day, the Chuck-will's-widow roosts on the ground or along horizontal branches, relying on cryptic mottled plumage for concealment. It nests directly on the leaf litter of open woodland and scrub, typically in pine-oak forests, dry forests, and woodland edges. The IUCN classifies this species as Least Concern, though Breeding Bird Survey data suggest moderate long-term population declines linked to forest fragmentation and light pollution that disrupts insect prey availability. Conservation of large-scale woodland tracts in the southeastern United States benefits this species and its associated nightjar community.

Shared Countries

Both species can be found in 2 countries:

🇨🇴 Colombia 🇻🇪 Venezuela