White-chested Swift vs Silver-rumped Spinetail
Cypseloides lemosi в сравнении с Rhaphidura leucopygialis
Side-by-Side Comparison
| Характеристика | White-chested Swift | Silver-rumped Spinetail |
|---|---|---|
| Научное название | Cypseloides lemosi | Rhaphidura leucopygialis |
| Отряд | Caprimulgiformes | Caprimulgiformes |
| Семейство | Apodidae | Apodidae |
| Охранный статус | Least Concern | Least Concern |
| Длина | — | — |
| Размах крыльев | 30,0 cm (11.8 in) | 23,2 cm (9.1 in) |
| Масса | 28,400000000000002 g (1.00 oz) | 13,65 g (0.48 oz) |
| Питание | Obligate aerial forager catching small flies, aphids, winged termites, and airborne spiders on the wing. | Obligate aerial forager on small insects and airborne spiders; among the fastest-flying of all swift … |
| Размер кладки | -- | -- |
| Population Trend | — | — |
Habitat Comparison
Общие среды обитания
White-chested Swift only
Silver-rumped Spinetail only
Song & Call Comparison
White-chested Swift
High, thin twittering; soft 'tsit' calls in flight; calls over Colombian waterfalls; very poorly known; thin, reedy contact notes; one of most rarely documented swifts
Silver-rumped Spinetail
High, thin squeaking notes delivered at rapid pace; silvery twittering with brief pauses forming loose conversational chatter.
Geographic Range & Migration
White-chested Swift
Known from Colombia and adjacent Ecuador. One of the world's rarest swifts; recorded at waterfalls in humid forest foothills at 500–1,200 m.
Silver-rumped Spinetail
Found from Myanmar and the Thai-Malay Peninsula south through Sumatra and Borneo. Resident in lowland and hill forest. Uncommon.
Охранный статус
White-chested Swift
Silver-rumped Spinetail
How to Tell Them Apart
White-chested Swift
Black upperparts and wings; distinctive large white chest patch contrasting sharply with black throat and belly; white confined to central breast; Colombian endemic with unique bold bicoloured plumage unlike any …
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.
About These Birds
White-chested Swift
A medium-sized swift (14-15 cm) endemic to the upper Cauca Valley of Colombia. Sooty-black plumage with a white breast patch. Aerial insectivore of subtropical forests. Classified as Endangered due to extremely restricted range and ongoing habitat loss.
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.