Palau Nightjar vs Heinrich's Nightjar
Caprimulgus phalaena comparé à Eurostopodus diabolicus
Side-by-Side Comparison
| Attribut | Palau Nightjar | Heinrich's Nightjar |
|---|---|---|
| Nom scientifique | Caprimulgus phalaena | Eurostopodus diabolicus |
| Ordre | Caprimulgiformes | Caprimulgiformes |
| Famille | Caprimulgidae | Caprimulgidae |
| Statut de conservation | Least Concern | Least Concern |
| Longueur | — | — |
| Envergure | 32,3 cm (12.7 in) | 39,9 cm (15.7 in) |
| Poids | 91,5 g (3.23 oz) | 104,0 g (3.67 oz) |
| Régime alimentaire | Catches flying insects in nocturnal aerial sallies over Palau island forest and scrub. | Nocturnal aerial insectivore; catches moths and beetles in flight over Sulawesi forest; poorly known. |
| Taille de la couvée | -- | 1 |
| Population Trend | — | — |
Habitat Comparison
Song & Call Comparison
Palau Nightjar
Churring call from Palau forest; repetitive hollow trill; endemic island species with poorly documented vocalizations; calls at night from dense vegetation
Heinrich's Nightjar
Haunting, hollow 'ku-WOO' repeated rhythmically; deep resonant quality; distinctive mournful whistle carrying through Sulawesi forest at night
Geographic Range & Migration
Palau Nightjar
Endemic to Palau (Micronesia, western Pacific Ocean); resident of forest and open woodland on the main Palauan islands.
Heinrich's Nightjar
Endemic to Sulawesi, Indonesia; resident of montane forest; extremely rare and poorly known, with very few records.
Statut de conservation
Palau Nightjar
Heinrich's Nightjar
How to Tell Them Apart
Palau Nightjar
Brown and rufous mottled above with dark vermiculations; pale buff throat patch; small pale wing spots; tail barred brown and buff without bold white markings; Palau endemic; relatively large and …
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.
About These Birds
Palau Nightjar
A medium Caprimulgidae nightjar (~92 g) endemic to the Palau Islands in the western Pacific. Inhabits forest, secondary growth, and scrub on main islands. Cryptic brown-and-buff plumage. Nocturnal insectivore. Little studied; biology largely unknown beyond basic observations. Least Concern within its restricted oceanic island range.
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.