Silver-rumped Spinetail vs White-collared Swift
Rhaphidura leucopygialis 비교 대상 Streptoprocne zonaris
Side-by-Side Comparison
| 속성 | Silver-rumped Spinetail | White-collared Swift |
|---|---|---|
| 학명 | Rhaphidura leucopygialis | Streptoprocne zonaris |
| 목 | Caprimulgiformes | Caprimulgiformes |
| 과 | Apodidae | Apodidae |
| 보전 상태 | Least Concern | Least Concern |
| 체장 | — | — |
| 날개 폭 | 23.2 cm (9.1 in) | 42.5 cm (16.7 in) |
| 체중 | 13.65 g (0.48 oz) | 106.45 g (3.75 oz) |
| 식성 | Obligate aerial forager on small insects and airborne spiders; among the fastest-flying of all swift … | Obligate aerial insectivore; gathers small flying insects, winged ants, and airborne spiders during flight. |
| 산란 수 | -- | 2 |
| 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.
White-collared Swift
Loud, screaming 'shreee-shreee'; powerful screeching trill; calls from large flocks over mountains; very audible; one of the loudest Neotropical swifts; alarm a harsh rattle
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.
White-collared Swift
Found from Mexico south through Central America to South America east of the Andes, reaching Bolivia and southern Brazil. Often in large flocks.
보전 상태
Silver-rumped Spinetail
White-collared Swift
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.
White-collared Swift
Large; glossy blue-black plumage with bold broad white collar encircling entire neck; collar clean and complete; underparts black; large slightly forked tail; among the most recognisable Neotropical swifts due to …
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.
White-collared Swift
A very large swift (20-22 cm, wingspan 45-55 cm) with a bold white collar band, the largest New World swift. Found from Mexico to southern Brazil and the Caribbean. Aerial insectivore, foraging in large, noisy flocks over forests and cities. Nests behind waterfalls and in caves.