Silver-rumped Spinetail vs Black Spinetail
Rhaphidura leucopygialis в сравнении с Telacanthura melanopygia
Side-by-Side Comparison
| Характеристика | Silver-rumped Spinetail | Black Spinetail |
|---|---|---|
| Научное название | Rhaphidura leucopygialis | Telacanthura melanopygia |
| Отряд | Caprimulgiformes | Caprimulgiformes |
| Семейство | Apodidae | Apodidae |
| Охранный статус | Least Concern | Least Concern |
| Длина | — | — |
| Размах крыльев | 23,2 cm (9.1 in) | 32,4 cm (12.8 in) |
| Масса | 13,65 g (0.48 oz) | 52,0 g (1.83 oz) |
| Питание | Obligate aerial forager on small insects and airborne spiders; among the fastest-flying of all swift … | High-speed aerial insectivore catching small flying insects and aerial spiders during fast sustained flight. |
| Размер кладки | -- | -- |
| Population Trend | — | — |
Habitat Comparison
Song & Call Comparison
Silver-rumped Spinetail
High, thin squeaking notes delivered at rapid pace; silvery twittering with brief pauses forming loose conversational chatter.
Black Spinetail
Deep, resonant chattering with gravelly undertones; series of rough churring notes interspersed with sharp screaming calls.
Geographic Range & Migration
Silver-rumped Spinetail
Found from Myanmar and the Thai-Malay Peninsula south through Sumatra and Borneo. Resident in lowland and hill forest. Uncommon.
Black Spinetail
Found in West and Central Africa from Nigeria and Cameroon east to Uganda. Resident in lowland rainforest and forest edge.
Охранный статус
Silver-rumped Spinetail
Black Spinetail
How to Tell Them Apart
Silver-rumped Spinetail
Small; dark blackish-brown upperparts; silvery-white rump band gleaming in flight; underparts pale whitish-grey; short spiny tail tips; Sundaic forest specialist; silvery rather than clean white rump distinguishes from White-rumped Spinetail.
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
Silver-rumped Spinetail
A small spinetail swift (10-11 cm) found in lowland forests from the Malay Peninsula through Sumatra and Borneo. Dark plumage with a conspicuous silvery-white rump. Spine-tipped tail. Aerial insectivore, often foraging in small flocks over forest canopy and rivers.
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.