Chuck-will's-widow vs Puerto Rican Nightjar

Antrostomus carolinensis compared with Antrostomus noctitherus

Key Differences

• Chuck-will's-widow is Least Concern while Puerto Rican Nightjar is Endangered.

Taxonomic Classification

Rank	Chuck-will's-widow	Puerto Rican Nightjar
Kingdom same	Animalia (동물)	Animalia (동물)
Phylum same	Chordata (척삭동물)	Chordata (척삭동물)
Class same	Aves (새)	Aves (새)
Order same	Caprimulgiformes (쏙독새목)	Caprimulgiformes (쏙독새목)
Family same	Caprimulgidae	Caprimulgidae
Genus same	Antrostomus	Antrostomus
Species	Antrostomus carolinensis	Antrostomus noctitherus

Evolutionary Relationship

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

Conservation Status

Chuck-will's-widow

LC — Least Concern

Puerto Rican Nightjar

EN — Endangered

Physical Characteristics

Attribute	Chuck-will's-widow	Puerto Rican Nightjar
Diet	—	—
Average Lifespan	—	—
Average Length	—	—
Average Weight	—	—

Habitat & Geographic Range

Chuck-will's-widow

Habitat

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

Range

Distributed across Colombia, Norway, and Venezuela.

Puerto Rican Nightjar

Habitat

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

Range

Found in Norway. Currently classified as Endangered on the IUCN Red List, this species faces significant conservation challenges across its range.

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