Chuck-will's-widow vs cut notchwort

Antrostomus carolinensis compared with Tritomaria exsecta

Key Differences

Chuck-will's-widow is Least Concern while cut notchwort is Endangered.

Taxonomic Classification

Rank	Chuck-will's-widow	cut notchwort
Kingdom	Animalia (Animals)	Plantae (Plants)
Phylum	Chordata (Chordates)	Marchantiophyta (liverwort)
Class	Aves (Birds)	Jungermanniopsida (Jungermanniopsida)
Order	Caprimulgiformes (Caprimulgiformes)	Jungermanniales (Jungermanniales)
Family	Caprimulgidae	Lophoziaceae
Genus	Antrostomus	Tritomaria
Species	Antrostomus carolinensis	Tritomaria exsecta

Conservation Status

Chuck-will's-widow

LC — Least Concern

cut notchwort

EN — Endangered

Physical Characteristics

Attribute	Chuck-will's-widow	cut notchwort
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.

cut notchwort

Habitat

Native to Asia and Europe and North America, inhabiting ecosystems characteristic of the region.

Range

Widely distributed across Asia (Taiwan), Europe (5 countries), and North America (United States). 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.