Satin Swiftlet vs Black Spinetail
Collocalia uropygialis 对比 Telacanthura melanopygia
Side-by-Side Comparison
| 属性 | Satin Swiftlet | Black Spinetail |
|---|---|---|
| 学名 | Collocalia uropygialis | Telacanthura melanopygia |
| 目 | Caprimulgiformes | Caprimulgiformes |
| 科 | Apodidae | Apodidae |
| 保护状况 | Not Evaluated | Least Concern |
| 体长 | — | — |
| 翼展 | — | 32.4 cm (12.8 in) |
| 体重 | 5.4 g (0.19 oz) | 52.0 g (1.83 oz) |
| 食性 | Aerial insectivore catching tiny flying insects, midges, and airborne spiders in fast low-altitude flight near … | High-speed aerial insectivore catching small flying insects and aerial spiders during fast sustained flight. |
| 产卵数 | 1-2 | -- |
| Population Trend | — | — |
Habitat Comparison
Song & Call Comparison
Satin Swiftlet
Very thin, high twittering; rapid 'chip' notes over Bismarck Archipelago islands; echolocation clicks inside cave roosts; tiny; call barely distinguishable from other small swiftlets
Black Spinetail
Deep, resonant chattering with gravelly undertones; series of rough churring notes interspersed with sharp screaming calls.
Geographic Range & Migration
Satin Swiftlet
Found in the Moluccas and southwestern Pacific including New Guinea and Solomon Islands. Resident in lowland forest, forest edge, and open areas.
Black Spinetail
Found in West and Central Africa from Nigeria and Cameroon east to Uganda. Resident in lowland rainforest and forest edge.
保护状况
Satin Swiftlet
Black Spinetail
How to Tell Them Apart
Satin Swiftlet
Tiny; blackish upperparts with satiny blue-green gloss; white rump band; underparts dark sooty-grey; forked tail; Oceanian swiftlet with satin-like sheen on upperparts distinguishing it from duller relatives in the region.
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
Satin Swiftlet
缎背金丝燕(Collocalia uropygialis)是一种体长9-10厘米的小型金丝燕，分布于俾斯麦群岛和所罗门群岛。上体深色具缎状光泽，腰部淡色。空中捕食昆虫，在洞穴和岩壁上筑巢。
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.