European Nightjar vs Heinrich's Nightjar
Caprimulgus europaeus เปรียบเทียบกับ Eurostopodus diabolicus
Side-by-Side Comparison
| คุณสมบัติ | European Nightjar | Heinrich's Nightjar |
|---|---|---|
| ชื่อวิทยาศาสตร์ | Caprimulgus europaeus | Eurostopodus diabolicus |
| อันดับ | Caprimulgiformes | Caprimulgiformes |
| วงศ์ตระกูล | Caprimulgidae | Caprimulgidae |
| สถานะการอนุรักษ์ | Least Concern | Least Concern |
| ความยาว | — | — |
| กว้างปีก | 36.6 cm (14.4 in) | 39.9 cm (15.7 in) |
| น้ำหนัก | 75.83333333333333 g (2.67 oz) | 104.0 g (3.67 oz) |
| อาหาร | Hawks moths, beetles, and flying insects at dusk and night over European heathland, forest edge, … | Nocturnal aerial insectivore; catches moths and beetles in flight over Sulawesi forest; poorly known. |
| จำนวนไข่ | 1-2 | 1 |
| Population Trend | — | — |
Habitat Comparison
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European Nightjar only
Heinrich's Nightjar only
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Song & Call Comparison
European Nightjar
Long, mechanical churring trill; sustained 'errrrrr' switching pitch between two notes; unique ventriloquial quality; calls from heath at dusk; alarm a sharp 'coo-ic'
Heinrich's Nightjar
Haunting, hollow 'ku-WOO' repeated rhythmically; deep resonant quality; distinctive mournful whistle carrying through Sulawesi forest at night
Geographic Range & Migration
European Nightjar
Breeds across Europe and western Asia from Britain to Lake Baikal; long-distance migrant wintering in sub-Saharan Africa from Senegal to East Africa.
Heinrich's Nightjar
Endemic to Sulawesi, Indonesia; resident of montane forest; extremely rare and poorly known, with very few records.
สถานะการอนุรักษ์
European Nightjar
Heinrich's Nightjar
How to Tell Them Apart
European Nightjar
Grey-brown and buff mottled with intricate dark vermiculations; male has white spots on outer primaries and white outer tail corners; plain grey head with pale supercilium; female lacks white wing …
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
European Nightjar
A medium Caprimulgidae nightjar (~76 g) breeding across Eurasia from Britain to central Siberia in open heath, scrub, and pine plantations. Males produce a sustained mechanical churring song at dusk. Long-distance migrant wintering in sub-Saharan Africa. Feeds on moths and beetles. Least Concern despite local heathland declines.
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.