Egyptian Nightjar vs Heinrich's Nightjar
Caprimulgus aegyptius เปรียบเทียบกับ Eurostopodus diabolicus
Side-by-Side Comparison
| คุณสมบัติ | Egyptian Nightjar | Heinrich's Nightjar |
|---|---|---|
| ชื่อวิทยาศาสตร์ | Caprimulgus aegyptius | Eurostopodus diabolicus |
| อันดับ | Caprimulgiformes | Caprimulgiformes |
| วงศ์ตระกูล | Caprimulgidae | Caprimulgidae |
| สถานะการอนุรักษ์ | Least Concern | Least Concern |
| ความยาว | — | — |
| กว้างปีก | 40.2 cm (15.8 in) | 39.9 cm (15.7 in) |
| น้ำหนัก | 77.0 g (2.72 oz) | 104.0 g (3.67 oz) |
| อาหาร | Night-active insect hawker taking moths, beetles, and flying termites during sallies over tropical forest clearings. | Nocturnal aerial insectivore; catches moths and beetles in flight over Sulawesi forest; poorly known. |
| จำนวนไข่ | 1-2 | 1 |
| Population Trend | — | — |
Habitat Comparison
Song & Call Comparison
Egyptian Nightjar
Soft, repetitive 'qurr-qurr'; purring trill from desert scrub; quieter than most Caprimulgus; calls carry across open sandy terrain at night; alarm a low 'croak'
Heinrich's Nightjar
Haunting, hollow 'ku-WOO' repeated rhythmically; deep resonant quality; distinctive mournful whistle carrying through Sulawesi forest at night
Geographic Range & Migration
Egyptian Nightjar
Breeds in North Africa and the Middle East east to Pakistan. Migrant wintering in sub-Saharan Africa. Found in sandy desert and semi-arid terrain.
Heinrich's Nightjar
Endemic to Sulawesi, Indonesia; resident of montane forest; extremely rare and poorly known, with very few records.
สถานะการอนุรักษ์
Egyptian Nightjar
Heinrich's Nightjar
How to Tell Them Apart
Egyptian Nightjar
Pale sandy-buff overall with fine dark brown speckles and streaks; whitish throat patch; wings show ochre spotting on coverts; one of the palest nightjars, adapted to arid desert habitats.
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
Egyptian Nightjar
A pale, sandy-colored nightjar (25 cm) well adapted to arid habitats. Cryptic desert plumage provides excellent camouflage on open sandy ground. Nocturnal insectivore feeding on beetles and moths. Found from the Sahara across the Middle East to Central Asia. A long-distance migrant.
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.