Chuck-will's-widow vs Spotted Nightjar
Antrostomus carolinensis 比較対象 Eurostopodus argus
Side-by-Side Comparison
| 属性 | Chuck-will's-widow | Spotted Nightjar |
|---|---|---|
| 学名 | Antrostomus carolinensis | Eurostopodus argus |
| 目 | Caprimulgiformes | Caprimulgiformes |
| 科 | Caprimulgidae | Caprimulgidae |
| 保全状況 | Near Threatened | Least Concern |
| 体長 | — | — |
| 翼開長 | 41.5 cm (16.3 in) | 42.7 cm (16.8 in) |
| 体重 | 112.94000000000001 g (3.98 oz) | 102.5 g (3.62 oz) |
| 食性 | Hawks large moths, beetles, and flying insects at night; large gape allows capture of small … | Aerial insectivore; hawks large moths, beetles, and flying insects at dusk and dawn over Australian … |
| 一腹卵数 | 2 | 1 |
| Population Trend | — | — |
Habitat Comparison
Song & Call Comparison
Chuck-will's-widow
Loud, whistled 'chuck-WILL's-WI-dow'; rich and rolling; lower and fuller than Whip-poor-will; carries far through southeastern US forest; calls persistently all night
Spotted Nightjar
Loud churring 'good-lord-deliver-us' repeated at dusk; melodic bubbling quality; also emits hollow 'cow-cow-cow' series and soft frog-like croaking
Geographic Range & Migration
Chuck-will's-widow
Breeds in dense woodland and forest edge in eastern North America from the Gulf states north to southern Ontario; winters in Cuba and Central America.
Spotted Nightjar
Resident and partial migrant of open woodland, grassland, and scrub across mainland Australia and migrating to New Guinea and Indonesia in winter.
保全状況
Chuck-will's-widow
Spotted Nightjar
How to Tell Them Apart
Chuck-will's-widow
Large; warm brown and buff mottled above with rufous tones; buff-brown throat collar; white inner webs of outer tail feathers in male; male with white gorget; female has buff throat …
Spotted Nightjar
Cryptically mottled grey-brown, rufous, and black with intricate vermiculations; distinctive large white spots on wing coverts; white throat patch; no white in wings or tail. Sexes similar with slight pattern …
About These Birds
Chuck-will's-widow
North America's largest Caprimulgidae nightjar (~113 g), breeding in open pine and oak woodland of the southeastern United States, wintering in the Caribbean and Central America. Named for its loud, distinctive call. Feeds on large moths, beetles, and occasionally small birds. Near Threatened from habitat loss.
Spotted Nightjar
オーストラリア本土のスピニフェックス草原に生息するヨタカで、体重103g。