alpine draba vs チャックウィルヨタカ

Draba alpina compared with Antrostomus carolinensis

Key Differences

alpine draba is Near Threatened while チャックウィルヨタカ is Least Concern.

Taxonomic Classification

Rank	alpine draba	チャックウィルヨタカ
Kingdom	Plantae (植物)	Animalia (動物)
Phylum	Magnoliophyta (被子植物門)	Chordata (脊索動物)
Class	Magnoliopsida (モクレン綱)	Aves (鳥類)
Order	Brassicales (アブラナ目)	Caprimulgiformes (ヨタカ目)
Family	Brassicaceae	Caprimulgidae
Genus	Draba	Antrostomus
Species	Draba alpina	Antrostomus carolinensis

Conservation Status

alpine draba

NT — Near Threatened

チャックウィルヨタカ

LC — Least Concern

Physical Characteristics

Attribute	alpine draba	チャックウィルヨタカ
Diet	—	—
Average Lifespan	—	—
Average Length	—	—
Average Weight	—	—

Habitat & Geographic Range

alpine draba

Habitat

Typically found in diverse terrestrial habitats from tropical forests to temperate regions.

Range

Distributed across Canada, Norway, and Sweden. Listed as Near Threatened, this species requires ongoing monitoring to prevent population decline.

チャックウィルヨタカ

Habitat

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

Range

Distributed across Colombia, Norway, and Venezuela.

alpine draba

The Alpine draba (Draba alpina) is a species in the genus Draba. It is currently classified as Near Threatened on the IUCN Red List. Typically found in diverse terrestrial habitats from tropical forests to temperate regions. Distributed across Canada, Norway, and Sweden. Listed as Near Threatened, this species requires ongoing monitoring to prevent population decline.

チャックウィルヨタカ

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.