Mossy-nest Swiftlet vs Pallid Swift
Aerodramus salangana в сравнении с Apus pallidus
Side-by-Side Comparison
| Характеристика | Mossy-nest Swiftlet | Pallid Swift |
|---|---|---|
| Научное название | Aerodramus salangana | Apus pallidus |
| Отряд | Caprimulgiformes | Caprimulgiformes |
| Семейство | Apodidae | Apodidae |
| Охранный статус | Least Concern | Least Concern |
| Длина | — | — |
| Размах крыльев | 22,7 cm (8.9 in) | 33,4 cm (13.1 in) |
| Масса | 11,3 g (0.40 oz) | 42,25 g (1.49 oz) |
| Питание | Aerial insectivore consuming minute dipterans, midges, and ballooning spiders caught in continuous fast flight. | Aerial insectivore foraging continuously in flight, taking tiny flies, beetles, and ballooning spiders. |
| Размер кладки | 1-2 | 1-4 |
| Population Trend | — | — |
Habitat Comparison
Song & Call Comparison
Mossy-nest Swiftlet
Rapid thin twittering; 'chip-chip' over Borneo forests; echolocation clicks in cave roosts; uses mossy nest material; calls softly in colonial roosts; moderate-pitched swiftlet
Pallid Swift
Melodic, rolling trill with rich timbre; sustained musical phrase with slight variations on repeated delivery at dusk.
Geographic Range & Migration
Mossy-nest Swiftlet
Found from the Philippines through Borneo and Sulawesi to the Moluccas. Resident in lowland and hill forest, often over rivers.
Pallid Swift
Breeds in the Mediterranean and North Africa east to Pakistan. Migratory; winters in sub-Saharan Africa from Senegal to Ethiopia.
Охранный статус
Mossy-nest Swiftlet
Pallid Swift
How to Tell Them Apart
Mossy-nest Swiftlet
Small; dark grey-brown upperparts with slight iridescence; pale grey-brown rump slightly paler than back; underparts greyish-white; forked tail; Sundaic swiftlet building mossy nests; rump contrast moderate, less striking than White-rumped.
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 …
About These Birds
Mossy-nest Swiftlet
A small swiftlet (11-12 cm) found from the Malay Peninsula through Indonesia to the Philippines. Dark plumage with a pale rump. Aerial insectivore. Colonial cave nester. Named for the salanga caves of Java where large colonies breed. Nests made partially of moss and saliva.
Pallid Swift
A medium-sized swift (16-17 cm) similar to Common Swift but paler, sandy-brown overall with a larger white throat patch. Found across southern Europe, North Africa, and the Middle East. Aerial insectivore. Long-distance migrant wintering in sub-Saharan Africa and South Asia.