Chuck-will's-widow vs large flying fox

Antrostomus carolinensis compared with Pteropus vampyrus

Key Differences

• Chuck-will's-widow is Least Concern while large flying fox is Near Threatened.

Taxonomic Classification

Rank	Chuck-will's-widow	large flying fox
Kingdom same	Animalia (Animals)	Animalia (Animals)
Phylum same	Chordata (Chordates)	Chordata (Chordates)
Class	Aves (Birds)	Mammalia (Mammals)
Order	Caprimulgiformes (Caprimulgiformes)	Chiroptera (Bats)
Family	Caprimulgidae	Pteropodidae (Fruit Bats)
Genus	Antrostomus	Pteropus (Flying Foxes)
Species	Antrostomus carolinensis	Pteropus vampyrus

Evolutionary Relationship

Chuck-will's-widow and large flying fox share a common ancestor at the Phylum level: Chordata. (Chordates)

Conservation Status

Chuck-will's-widow

LC — Least Concern

large flying fox

NT — Near Threatened

Trend: Decreasing ↓

Physical Characteristics

Attribute	Chuck-will's-widow	large flying fox
Diet	—	Herbivore
Average Lifespan	—	15 years
Average Length	—	30 cm
Average Weight	—	1.1 kg

Habitat & Geographic Range

Chuck-will's-widow

Habitat

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

Range

Distributed across Colombia, Norway, and Venezuela.

large flying fox

Habitat

Found across multiple habitat types including tropical and subtropical moist broadleaf forests, tropical and subtropical dry broadleaf forests, and tropical and subtropical grasslands and savannas, among 6 distinct biome types spanning the Australasia and Indomalayan realms. Populations are also found in montane and highland environments at higher elevations.

Range

Distributed across Indonesia, Malaysia, Philippines, and Thailand. Listed as Near Threatened, this species requires ongoing monitoring to prevent population decline.

Chuck-will's-widow

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.

large flying fox

The world's largest bat species, large flying foxes have wingspans reaching 1.5 meters and inhabit tropical forests from Southeast Asia to the Philippines and Indonesia. Despite the alarming name, they feed exclusively on fruit and nectar, making them vital pollinators and seed dispersers for tropical forest trees. Roost in massive colonies of thousands. Listed as Vulnerable due to hunting for bushmeat and habitat destruction.