Mossy-nest Swiftlet vs Chestnut-collared Swift
Aerodramus salangana مقارنةً بـ Streptoprocne rutila
Side-by-Side Comparison
| السمة | Mossy-nest Swiftlet | Chestnut-collared Swift |
|---|---|---|
| الاسم العلمي | Aerodramus salangana | Streptoprocne rutila |
| الرتبة | Caprimulgiformes | Caprimulgiformes |
| الفصيلة | Apodidae | Apodidae |
| حالة الحفاظ | Least Concern | Least Concern |
| الطول | — | — |
| طول الجناح | 22,7 cm (8.9 in) | 26,0 cm (10.2 in) |
| الوزن | 11,3 g (0.40 oz) | 21,8 g (0.77 oz) |
| النظام الغذائي | Aerial insectivore consuming minute dipterans, midges, and ballooning spiders caught in continuous fast flight. | Entirely airborne feeder on tiny flies, gnats, and airborne arachnids; one of the most aerial … |
| عدد البيض في الوضع | 1-2 | 2 |
| 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
Chestnut-collared Swift
High, screaming trill; rapid 'scree-scree' in flight; shrill and penetrating; calls over Neotropical mountains and canyon edges; alarm a rapid screeching chatter
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.
Chestnut-collared Swift
Found from Mexico and the Caribbean south through Central America and South America to Argentina. Resident in highlands near mountain cliffs.
حالة الحفاظ
Mossy-nest Swiftlet
Chestnut-collared 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.
Chestnut-collared Swift
Dark blackish-brown body with diagnostic rich chestnut collar encircling entire neck; collar bold and complete; underparts slightly paler brown; small swift with striking warm-toned neck band contrasting vividly with dark …
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.
Chestnut-collared Swift
A small swift (13-14 cm) found from Mexico through Central America and South America to Bolivia and Brazil. Dark plumage with a distinctive chestnut collar and throat. Aerial insectivore, often foraging in mixed-species swift flocks over forests and highlands.