Chirruping Nightjar vs Heinrich's Nightjar
Caprimulgus griseatus so với Eurostopodus diabolicus
Side-by-Side Comparison
| Thuộc Tính | Chirruping Nightjar | Heinrich's Nightjar |
|---|---|---|
| Tên Khoa Học | Caprimulgus griseatus | Eurostopodus diabolicus |
| Bộ | Caprimulgiformes | Caprimulgiformes |
| Họ | Caprimulgidae | Caprimulgidae |
| Tình Trạng Bảo Tồn | Not Evaluated | Least Concern |
| Chiều Dài | — | — |
| Chiều Dài Sải Cánh | — | 39,9 cm (15.7 in) |
| Khối Lượng | — | 104,0 g (3.67 oz) |
| Chế Độ Ăn | Night-hunting insectivore taking moths, flying beetles, and termites in sustained aerial pursuits. | Nocturnal aerial insectivore; catches moths and beetles in flight over Sulawesi forest; poorly known. |
| Số Trứng | -- | 1 |
| Population Trend | — | — |
Habitat Comparison
Song & Call Comparison
Chirruping Nightjar
Distinctive chirruping trill; rapid high-pitched 'chi-chi-chi-rrr'; sharper and more staccato than typical Caprimulgus; calls at dusk from open habitats
Heinrich's Nightjar
Haunting, hollow 'ku-WOO' repeated rhythmically; deep resonant quality; distinctive mournful whistle carrying through Sulawesi forest at night
Geographic Range & Migration
Chirruping Nightjar
Found across sub-Saharan Africa from Senegal east to Somalia and south to South Africa. Common on rocky outcrops and granite hills in savanna.
Heinrich's Nightjar
Endemic to Sulawesi, Indonesia; resident of montane forest; extremely rare and poorly known, with very few records.
Tình Trạng Bảo Tồn
Chirruping Nightjar
Heinrich's Nightjar
How to Tell Them Apart
Chirruping Nightjar
Grey-brown upperparts with blackish streaks and pale buff vermiculations; buff-white chin and throat; underparts barred pale buff and dark brown; recently split from Savanna Nightjar, differing in subtle plumage 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
Chirruping Nightjar
A small nightjar (20-22 cm) of dry scrub and semi-arid savanna in Colombia, Venezuela, and Guyana. Pale grey-brown plumage with fine streaking. Named for its chirruping, insect-like call delivered at dusk. Nocturnal insectivore, feeding on moths and beetles.
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.