Vogelkop Owlet-nightjar vs Moluccan Owlet-nightjar
Aegotheles affinis в сравнении с Aegotheles crinifrons
Side-by-Side Comparison
| Характеристика | Vogelkop Owlet-nightjar | Moluccan Owlet-nightjar |
|---|---|---|
| Научное название | Aegotheles affinis | Aegotheles crinifrons |
| Отряд | Caprimulgiformes | Caprimulgiformes |
| Семейство | Aegothelidae | Aegothelidae |
| Охранный статус | Near Threatened | Least Concern |
| Длина | — | — |
| Размах крыльев | 26,7 cm (10.5 in) | 32,9 cm (13.0 in) |
| Масса | 52,3 g (1.84 oz) | 136,0 g (4.80 oz) |
| Питание | Nocturnal insectivore feeding on beetles, moths, and ants; hunts with short aerial sallies and ground-gleaning. | Strictly nocturnal; takes beetles, moths, and flying termites in sallying flight from a perch near … |
| Размер кладки | -- | -- |
| Population Trend | — | — |
Habitat Comparison
Song & Call Comparison
Vogelkop Owlet-nightjar
Soft churring trill; quiet 'trrr' from Vogelkop Peninsula forest; calls at night; poorly documented; similar to Barred Owlet-nightjar but softer; alarm a chattered series
Moluccan Owlet-nightjar
Loud, resonant churring; deep 'churr-churr' for an owlet-nightjar; calls from Halmahera forest at night; larger size reflected in lower pitch; alarm a harsh bark
Geographic Range & Migration
Vogelkop Owlet-nightjar
Endemic to the Vogelkop Peninsula of western New Guinea. Found in lowland and hill forest. Range and habits poorly understood from few specimens.
Moluccan Owlet-nightjar
Endemic to the northern Moluccas of Indonesia. Resident in lowland and hill forest on Halmahera and adjacent islands.
Охранный статус
Vogelkop Owlet-nightjar
Moluccan Owlet-nightjar
How to Tell Them Apart
Vogelkop Owlet-nightjar
Dark grey-brown upperparts with darker barring; underparts pale buff barred dark brown; facial disc with dark border; restricted to Vogelkop Peninsula, New Guinea; slightly darker and greyer than allied Mountain …
Moluccan Owlet-nightjar
Large; dark sooty-brown upperparts with grey-buff barring; underparts pale buff heavily barred dark brown; very dark facial markings; North Moluccan endemic and one of the largest owlet-nightjars with uniformly dark …
About These Birds
Vogelkop Owlet-nightjar
A medium-sized owlet-nightjar (22-24 cm) found in montane forests of the Vogelkop Peninsula (Bird's Head) of western New Guinea. Dark brown barred plumage. Nocturnal insectivore. Recently recognized as a distinct species, separated from Barred Owlet-nightjar. Limited ecological data.
Moluccan Owlet-nightjar
A medium-sized owlet-nightjar (25-29 cm) endemic to the Moluccan Islands of Indonesia. Dark brown plumage with rufous tones and a prominent erectile crest. Nocturnal insectivore of forest and forest edge. Found on Halmahera, Bacan, and possibly other islands.