Eastern Whip-poor-will vs Cayenne Nightjar
Antrostomus vociferus comparé à Setopagis maculosa
Side-by-Side Comparison
| Attribut | Eastern Whip-poor-will | Cayenne Nightjar |
|---|---|---|
| Nom scientifique | Antrostomus vociferus | Setopagis maculosa |
| Ordre | Caprimulgiformes | Caprimulgiformes |
| Famille | Caprimulgidae | Caprimulgidae |
| Statut de conservation | Near Threatened | Data Deficient |
| Longueur | — | — |
| Envergure | 30,9 cm (12.2 in) | 27,8 cm (10.9 in) |
| Poids | 53,099999999999994 g (1.87 oz) | 47,0 g (1.66 oz) |
| Régime alimentaire | Aerial insectivore; catches large moths and flying insects at night over North American forest and … | Catches flying insects in aerial pursuit at night over South American forest and scrub. |
| Taille de la couvée | 1-2 | 1-2 |
| Population Trend | — | — |
Habitat Comparison
Song & Call Comparison
Eastern Whip-poor-will
Loud, clear 'whip-POOR-WILL' repeated hundreds of times; emphatic burry whistle; iconic nocturnal forest sound of eastern North America; male calls incessantly at dusk
Cayenne Nightjar
Poorly known vocalizations; presumed churring trill based on genus; extremely rare recordings; distinct from other Setopagis by subtle tonal and rhythm differences
Geographic Range & Migration
Eastern Whip-poor-will
Breeds in open woodland and forest edge in eastern North America from southern Canada to the Gulf Coast; winters in Central America and Mexico.
Cayenne Nightjar
Known from a few specimens from French Guiana; possibly a rare resident of coastal forest and scrub; poorly known.
Statut de conservation
Eastern Whip-poor-will
Cayenne Nightjar
How to Tell Them Apart
Eastern Whip-poor-will
Grey-brown and buff mottled above with dark vermiculations; white gorget in male; pale buff barred underparts; white tips on outer tail feathers in male; female with buff gorget and buff …
Cayenne Nightjar
Brown and buff mottled above with dark vermiculations; pale buff below with darker barring; white throat patch in male; outer tail spots white; data deficient; known from only a handful …
About These Birds
Eastern Whip-poor-will
A medium Caprimulgidae nightjar (~53 g) of dry open forest in eastern North America, famous for its insistent 'whip-poor-will' call repeated hundreds of times. Mottled grey-brown plumage. Winters in Central America. Feeds on moths and beetles in aerial pursuit. Near Threatened from insect declines and forest fragmentation.
Cayenne Nightjar
A small Caprimulgidae nightjar (~47 g) from coastal French Guiana and adjacent Suriname. Known from only a handful of specimens; biology essentially unknown. Mottled brown plumage presumed cryptic in leaf litter. Presumed nocturnal insectivore. Data Deficient due to extreme rarity of confirmed records in the wild.