Archbold's Nightjar vs Yucatan Poorwill
Eurostopodus archboldi so với Nyctiphrynus yucatanicus
Side-by-Side Comparison
| Thuộc Tính | Archbold's Nightjar | Yucatan Poorwill |
|---|---|---|
| Tên Khoa Học | Eurostopodus archboldi | Nyctiphrynus yucatanicus |
| Bộ | Caprimulgiformes | Caprimulgiformes |
| Họ | Caprimulgidae | Caprimulgidae |
| Tình Trạng Bảo Tồn | Least Concern | Least Concern |
| Chiều Dài | — | — |
| Chiều Dài Sải Cánh | 41,0 cm (16.1 in) | 21,8 cm (8.6 in) |
| Khối Lượng | 77,0 g (2.72 oz) | 24,5 g (0.86 oz) |
| Chế Độ Ăn | Aerial insectivore; catches moths and beetles in nocturnal flight over New Guinea montane forest. | Aerial insectivore; catches moths and beetles at night over Yucatan Peninsula dry forest and scrub. |
| Số Trứng | 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
Yucatan Poorwill
Thin, whistled 'poor-will'; high and reedy for a nightjar; calls from dry Yucatan scrub at dusk; small size reflected in lighter, thinner call quality
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.
Yucatan Poorwill
Resident of lowland tropical forest and scrub in the Yucatan Peninsula of Mexico, Belize, and northern Guatemala.
Tình Trạng Bảo Tồn
Archbold's Nightjar
Yucatan Poorwill
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.
Yucatan Poorwill
Pale sandy-brown and buff mottled above; pale buff below with dark barring; white throat in male; no ear tufts unlike Eared Poorwill; small white outer tail spots; restricted to Yucatan …
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.
Yucatan Poorwill
A tiny Caprimulgidae poorwill (~25 g) of dry scrub and thorn forest on the Yucatan Peninsula and adjacent Belize. One of the smallest poorwills. Brown-and-buff finely vermiculated plumage. Roosts on the ground amid leaf litter. Nocturnal insectivore, taking tiny moths and beetles. Least Concern within its restricted range.