Buff-collared Nightjar vs Chuck-will's-widow

Antrostomus ridgwayi compared with Antrostomus carolinensis

Taxonomic Classification

Rank	Buff-collared Nightjar	Chuck-will's-widow
Kingdom same	Animalia (Animals)	Animalia (Animals)
Phylum same	Chordata (Chordates)	Chordata (Chordates)
Class same	Aves (Birds)	Aves (Birds)
Order same	Caprimulgiformes (Caprimulgiformes)	Caprimulgiformes (Caprimulgiformes)
Family same	Caprimulgidae	Caprimulgidae
Genus same	Antrostomus	Antrostomus
Species	Antrostomus ridgwayi	Antrostomus carolinensis

Evolutionary Relationship

Buff-collared Nightjar and Chuck-will's-widow share a common ancestor at the Genus level: Antrostomus.

Conservation Status

Buff-collared Nightjar

LC — Least Concern

Chuck-will's-widow

LC — Least Concern

Physical Characteristics

Attribute	Buff-collared Nightjar	Chuck-will's-widow
Diet	—	—
Average Lifespan	—	—
Average Length	—	—
Average Weight	—	—

Habitat & Geographic Range

Buff-collared Nightjar

Habitat

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

Range

Found in Norway.

Chuck-will's-widow

Habitat

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

Range

Distributed across Colombia, Norway, and Venezuela.

Buff-collared Nightjar

The Buff-Collared Nightjar (Antrostomus ridgwayi) is a species in the genus Antrostomus. It is currently classified as Least Concern on the IUCN Red List. Typically found in various aerial, terrestrial, and aquatic environments.

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.

Shared Countries

Both species can be found in 1 countries:

🇳🇴 Norway