Asian Palm Swift vs White-collared Swift
Cypsiurus balasiensis 比較対象 Streptoprocne zonaris
Side-by-Side Comparison
| 属性 | Asian Palm Swift | White-collared Swift |
|---|---|---|
| 学名 | Cypsiurus balasiensis | Streptoprocne zonaris |
| 目 | Caprimulgiformes | Caprimulgiformes |
| 科 | Apodidae | Apodidae |
| 保全状況 | Least Concern | Least Concern |
| 体長 | — | — |
| 翼開長 | 22.9 cm (9.0 in) | 42.5 cm (16.7 in) |
| 体重 | 8.833333333333334 g (0.31 oz) | 106.45 g (3.75 oz) |
| 食性 | Feeds on aerial plankton of tiny insects and spiders; entire diet captured during non-stop aerial … | Obligate aerial insectivore; gathers small flying insects, winged ants, and airborne spiders during flight. |
| 一腹卵数 | 1-3 | 2 |
| Population Trend | — | — |
Habitat Comparison
Song & Call Comparison
Asian Palm Swift
High, wavering whistle with slightly nasal quality; gently pulsed notes trembling upward, characteristic of evening flight calls.
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
Asian Palm Swift
Found from India and Sri Lanka east through Southeast Asia to the Philippines and Indonesia. Common resident in open areas near palms.
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.
保全状況
Asian Palm Swift
White-collared Swift
How to Tell Them Apart
Asian Palm Swift
Very slender; pale greyish-brown overall; paler below; extremely long deeply forked tail; tiny for a swift; South and Southeast Asian palm-nesting species; uniform pale brownish-grey coloration similar to African relative …
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
Asian Palm Swift
A slender swift (13 cm) widespread across South and Southeast Asia from India to the Philippines and Indonesia. Dark brown plumage with a deeply forked tail. Aerial insectivore, closely associated with palm trees, nesting on the underside of palm leaves. Abundant in tropical lowlands.
White-collared Swift
ホワイトカラードスウィフトはラテンアメリカ全域の山岳地帯に広く分布し、白い首輪が特徴的な大型のアマツバメである。