Archbold's Nightjar vs Scrub Nightjar
Eurostopodus archboldi เปรียบเทียบกับ Nyctidromus anthonyi
Side-by-Side Comparison
| คุณสมบัติ | Archbold's Nightjar | Scrub Nightjar |
|---|---|---|
| ชื่อวิทยาศาสตร์ | Eurostopodus archboldi | Nyctidromus anthonyi |
| อันดับ | Caprimulgiformes | Caprimulgiformes |
| วงศ์ตระกูล | Caprimulgidae | Caprimulgidae |
| สถานะการอนุรักษ์ | Least Concern | Least Concern |
| ความยาว | — | — |
| กว้างปีก | 41.0 cm (16.1 in) | 24.8 cm (9.8 in) |
| น้ำหนัก | 77.0 g (2.72 oz) | 36.2 g (1.28 oz) |
| อาหาร | Aerial insectivore; catches moths and beetles in nocturnal flight over New Guinea montane forest. | Catches flying insects in nocturnal aerial sallies over arid scrub of Ecuador and Peru. |
| จำนวนไข่ | 1 | 1-2 |
| Population Trend | — | — |
Habitat Comparison
Song & Call Comparison
Archbold's Nightjar
Rarely recorded; presumed churring nocturnal song; low, resonant trilling typical of genus; vocalizations scarcely documented from highland New Guinea
Scrub Nightjar
Whistled churring phrases; melodic 'pweer-pweer' series; similar to Pauraque but drier and less rich; calls from scrubby desert at night; contact a soft 'chuck'
Geographic Range & Migration
Archbold's Nightjar
Resident of montane forest in central New Guinea (Snow Mountains and Star Mountains) above 1,500 m; very poorly known.
Scrub Nightjar
Resident of arid scrub, dry woodland, and coastal zones in western Ecuador and northwestern Peru.
สถานะการอนุรักษ์
Archbold's Nightjar
Scrub Nightjar
How to Tell Them Apart
Archbold's Nightjar
Brown and dark grey with rufous-buff vermiculations; whitish throat patch; pale buff supercilium contrasts with darker crown; no white wing or tail patches; tail barred; New Guinea highlands; few records.
Scrub Nightjar
Pale sandy-brown with fine dark brown vermiculations; white throat patch; white outer tail feathers in male; no white wing bar; smaller and paler overall than Pauraque; buff outer tail in …
About These Birds
Archbold's Nightjar
A small Caprimulgidae nightjar (~77 g) known from subalpine grasslands and forest margins in the interior mountains of New Guinea. Named after naturalist Richard Archbold. Cryptic brown-patterned plumage. Nocturnal insectivore. Infrequently observed; biology largely undescribed. Least Concern in its montane range.
Scrub Nightjar
A small Caprimulgidae nightjar (~36 g) of arid coastal scrub and thorn-scrub in southwestern Ecuador and northwestern Peru. Pale sandy-buff and brown plumage suits its xeric habitat. Closely related to the Pauraque but smaller and paler. Nocturnal insectivore; calls at dusk. Least Concern in its limited range.