Satin Swiftlet vs Black Spinetail
Collocalia uropygialis so với Telacanthura melanopygia
Side-by-Side Comparison
| Thuộc Tính | Satin Swiftlet | Black Spinetail |
|---|---|---|
| Tên Khoa Học | Collocalia uropygialis | Telacanthura melanopygia |
| Bộ | Caprimulgiformes | Caprimulgiformes |
| Họ | Apodidae | Apodidae |
| Tình Trạng Bảo Tồn | Not Evaluated | Least Concern |
| Chiều Dài | — | — |
| Chiều Dài Sải Cánh | — | 32,4 cm (12.8 in) |
| Khối Lượng | 5,4 g (0.19 oz) | 52,0 g (1.83 oz) |
| Chế Độ Ăn | 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. |
| Số Trứng | 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.
Tình Trạng Bảo Tồn
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
A small swiftlet (9-10 cm) found in the Bismarck Archipelago and Solomon Islands. Dark upperparts with a satiny sheen and pale underparts. Aerial insectivore. Colonial cave nester. Recently split from Glossy Swiftlet based on genetic and vocal differences.
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.