Heinrich's Nightjar vs White-tailed Nightjar
Eurostopodus diabolicus comparado con Hydropsalis cayennensis
Side-by-Side Comparison
| Atributo | Heinrich's Nightjar | White-tailed Nightjar |
|---|---|---|
| Nombre científico | Eurostopodus diabolicus | Hydropsalis cayennensis |
| Orden | Caprimulgiformes | Caprimulgiformes |
| Familia | Caprimulgidae | Caprimulgidae |
| Estado de conservación | Least Concern | Least Concern |
| Longitud | — | — |
| Envergadura | 39,9 cm (15.7 in) | 27,3 cm (10.7 in) |
| Peso | 104,0 g (3.67 oz) | 35,75 g (1.26 oz) |
| Dieta | Nocturnal aerial insectivore; catches moths and beetles in flight over Sulawesi forest; poorly known. | Aerial insectivore; catches moths, beetles, and flying insects at night over South American open and … |
| Tamaño de la puesta | 1 | 2 |
| Population Trend | — | — |
Habitat Comparison
Hábitats compartidos
Ninguno
Heinrich's Nightjar only
White-tailed Nightjar only
Song & Call Comparison
Heinrich's Nightjar
Haunting, hollow 'ku-WOO' repeated rhythmically; deep resonant quality; distinctive mournful whistle carrying through Sulawesi forest at night
White-tailed Nightjar
Rapid, whirring trill; 'churrrr' repeated with nasal quality; calls from open savanna and grassland at dusk; alarm a sharp bark; males display low over ground
Geographic Range & Migration
Heinrich's Nightjar
Endemic to Sulawesi, Indonesia; resident of montane forest; extremely rare and poorly known, with very few records.
White-tailed Nightjar
Resident of open savanna and forest edge from Costa Rica through Colombia and Venezuela to the Guianas and northern Brazil; also Caribbean islands.
Estado de conservación
Heinrich's Nightjar
White-tailed Nightjar
How to Tell Them Apart
Heinrich's Nightjar
Rufous-brown and dark brown mottled with buff vermiculations; large pale buff throat patch; pale buff supercilium; no white wing markings; tail darkly barred brown and buff. Poorly known; Sulawesi endemic.
White-tailed Nightjar
Male brown and grey mottled; white outer tail feathers diagnostic; white throat; small white wing spots; female has buff outer tail feathers and lacks white wing spots; scrubby savanna habitats.
About These Birds
Heinrich's Nightjar
A medium Caprimulgidae nightjar (~104 g) endemic to the forest and forest-edge habitats of Sulawesi, Indonesia. Cryptically patterned brown-and-buff. Nocturnal insectivore; catches moths and beetles in aerial sallies. Little studied and rarely encountered in the field. Least Concern within its Sulawesi range.
White-tailed Nightjar
El añapero de cola blanca es un chotacabras nocturno de América del Sur tropical, que habita en bordes de selva y sabanas abiertas.