White-tipped Swift vs Black Spinetail
Aeronautes montivagus 比較対象 Telacanthura melanopygia
Side-by-Side Comparison
| 属性 | White-tipped Swift | Black Spinetail |
|---|---|---|
| 学名 | Aeronautes montivagus | Telacanthura melanopygia |
| 目 | Caprimulgiformes | Caprimulgiformes |
| 科 | Apodidae | Apodidae |
| 保全状況 | Least Concern | Least Concern |
| 体長 | — | — |
| 翼開長 | 23.0 cm (9.1 in) | 32.4 cm (12.8 in) |
| 体重 | 20.21666666666667 g (0.71 oz) | 52.0 g (1.83 oz) |
| 食性 | Obligate aerial feeder on small insects and arachnids; catches prey in a wide gape during … | High-speed aerial insectivore catching small flying insects and aerial spiders during fast sustained flight. |
| 一腹卵数 | 4-5 | -- |
| Population Trend | — | — |
Habitat Comparison
Song & Call Comparison
White-tipped Swift
High, pure whistle fading to sibilant ending; soft series of descending notes with slight wavering, rarely heard distinctly.
Black Spinetail
Deep, resonant chattering with gravelly undertones; series of rough churring notes interspersed with sharp screaming calls.
Geographic Range & Migration
White-tipped Swift
Found in the Andes and tepuis of Venezuela, Colombia, Ecuador, Peru, and Bolivia at 500–3,000 m. Resident in montane rocky outcrops.
Black Spinetail
Found in West and Central Africa from Nigeria and Cameroon east to Uganda. Resident in lowland rainforest and forest edge.
保全状況
White-tipped Swift
Black Spinetail
How to Tell Them Apart
White-tipped Swift
Dark blackish-brown; white throat and pale flanks; white tips to secondaries forming a white trailing-edge band on wing; smaller than White-throated Swift; Andean species distinguished by white-tipped secondary pattern.
Black Spinetail
Large; entirely black plumage with slight gloss; black rump unlike white-rumped congeners; underparts dark; spiny tail; West African forest species; all-black coloration with no contrasting markings distinguishes it from all …
About These Birds
White-tipped Swift
A medium-sized swift (13-14 cm) found in montane regions from Mexico to Venezuela and Peru. Dark plumage with white tips on the outer tail feathers. Aerial insectivore, foraging over mountain slopes and cloud forests. Often seen in flocks along steep mountain ridges.
Black Spinetail
A medium-sized spinetail swift (14-15 cm) of lowland rainforests in West and Central Africa. All-dark plumage. Spine-tipped tail for bracing against tree trunks. Aerial insectivore, foraging above the forest canopy. Nests inside hollow trees. Uncommon and seldom observed.