Pallid Swift vs Purple Needletail
Apus pallidus 对比 Hirundapus celebensis
Side-by-Side Comparison
| 属性 | Pallid Swift | Purple Needletail |
|---|---|---|
| 学名 | Apus pallidus | Hirundapus celebensis |
| 目 | Caprimulgiformes | Caprimulgiformes |
| 科 | Apodidae | Apodidae |
| 保护状况 | Least Concern | Least Concern |
| 体长 | — | — |
| 翼展 | 33.4 cm (13.1 in) | 42.7 cm (16.8 in) |
| 体重 | 42.25 g (1.49 oz) | 186.5 g (6.58 oz) |
| 食性 | Aerial insectivore foraging continuously in flight, taking tiny flies, beetles, and ballooning spiders. | Catches aerial plankton of small insects and spiders in fast sweeping flight; roosts in rock … |
| 产卵数 | 1-4 | -- |
| Population Trend | — | — |
Habitat Comparison
Song & Call Comparison
Pallid Swift
Melodic, rolling trill with rich timbre; sustained musical phrase with slight variations on repeated delivery at dusk.
Purple Needletail
Thin, penetrating screech with piercing quality; rapid trilling notes cascading steeply, cutting through jungle noise effectively.
Geographic Range & Migration
Pallid Swift
Breeds in the Mediterranean and North Africa east to Pakistan. Migratory; winters in sub-Saharan Africa from Senegal to Ethiopia.
Purple Needletail
Found on Sulawesi, the Philippines, and adjacent islands in Wallacea. Resident in lowland and hill forest, foraging over forest and open areas.
保护状况
Pallid Swift
Purple Needletail
How to Tell Them Apart
Pallid Swift
Medium-large; pale brownish-grey overall, distinctly paler than Common Swift; larger pale throat patch; wing coverts show pale scaly edges; Mediterranean and Middle Eastern species; pale sandy-brown tone separates it from …
Purple Needletail
Very large; dark black-brown upperparts with intense purple gloss on back and wing coverts; white throat patch; white undertail coverts; short spiny tail; Sulawesi endemic and the heaviest needletail; stunning …
About These Birds
Pallid Swift
淡色雨燕在地中海沿岸和北非繁殖，颜色比普通雨燕更淡。
Purple Needletail
苏拉威西针尾雨燕是印度尼西亚苏拉威西岛的特有雨燕，属针尾雨燕属。体型较大，飞行速度极快，尾羽具坚硬的针状羽轴。以飞行昆虫为食，在空中度过大部分时间，栖息于热带森林和开阔地带。