Prigogine's Nightjar vs Heinrich's Nightjar
Caprimulgus prigoginei compared with Eurostopodus diabolicus
Side-by-Side Comparison
| Attribute | Prigogine's Nightjar | Heinrich's Nightjar |
|---|---|---|
| Scientific Name | Caprimulgus prigoginei | Eurostopodus diabolicus |
| Order | Caprimulgiformes | Caprimulgiformes |
| Family | Caprimulgidae | Caprimulgidae |
| Conservation Status | Data Deficient | Least Concern |
| Length | — | — |
| Wingspan | 32.2 cm (12.7 in) | 39.9 cm (15.7 in) |
| Weight | 57.5 g (2.03 oz) | 104.0 g (3.67 oz) |
| Diet | Nocturnal insectivore feeding on moths, termites, and flying beetles caught in aerial sallies over savanna … | Nocturnal aerial insectivore; catches moths and beetles in flight over Sulawesi forest; poorly known. |
| Clutch Size | -- | 1 |
| Population Trend | — | — |
Habitat Comparison
Song & Call Comparison
Prigogine's Nightjar
Essentially unknown vocalizations; extremely rare Central African species; presumed churring trill; known from only two specimens; calls at night from forest
Heinrich's Nightjar
Haunting, hollow 'ku-WOO' repeated rhythmically; deep resonant quality; distinctive mournful whistle carrying through Sulawesi forest at night
Geographic Range & Migration
Prigogine's Nightjar
Found in Cameroon, Gabon, Equatorial Guinea, and the Republic of Congo. Resident in lowland rainforest and forest edge. Rare.
Heinrich's Nightjar
Endemic to Sulawesi, Indonesia; resident of montane forest; extremely rare and poorly known, with very few records.
Conservation Status
Prigogine's Nightjar
Heinrich's Nightjar
How to Tell Them Apart
Prigogine's Nightjar
Dark blackish-brown upperparts with pale buff mottling and streaking; whitish throat patch; buff and brown barred underparts; data-deficient Albertine Rift endemic known from limited specimens.
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
Prigogine's Nightjar
An extremely rare and poorly known nightjar described from a single specimen collected in the Itombwe Mountains of eastern Democratic Republic of Congo in 1955. No confirmed records since. Montane forest habitat. Classified as Endangered. Ecology virtually unknown.
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.