Great Dusky Swift vs Waterfall Swift
Cypseloides senex 비교 대상 Hydrochous gigas
Side-by-Side Comparison
| 속성 | Great Dusky Swift | Waterfall Swift |
|---|---|---|
| 학명 | Cypseloides senex | Hydrochous gigas |
| 목 | Caprimulgiformes | Caprimulgiformes |
| 과 | Apodidae | Apodidae |
| 보전 상태 | Least Concern | Near Threatened |
| 체장 | — | — |
| 날개 폭 | 33.8 cm (13.3 in) | 29.2 cm (11.5 in) |
| 체중 | 83.0 g (2.93 oz) | 38.540000000000006 g (1.36 oz) |
| 식성 | Feeds on aerial plankton of tiny insects and spiders; entire diet captured during non-stop aerial … | Obligate aerial forager; feeds entirely on the wing on small flying insects, midges, and airborne … |
| 산란 수 | 1-2 | 1 |
| Population Trend | — | — |
Habitat Comparison
Song & Call Comparison
Great Dusky Swift
Loud, churring trill; harsher and louder than other Cypseloides; calls over Iguacu Falls and major Neotropical waterfalls; buzzy 'bzzzt-bzzzt' in aerial groups
Waterfall Swift
Rapid, high-pitched twittering; sharp 'tsit-tsit' calls over Southeast Asian waterfalls; thin metallic notes; nest behind waterfalls; calls audible over roaring water
Geographic Range & Migration
Great Dusky Swift
Found in eastern South America from Venezuela and the Guianas south to Bolivia and Paraguay. Resident near rocky cliffs and waterfalls.
Waterfall Swift
Found from southern Thailand through the Thai-Malay Peninsula to Sumatra and Borneo. Restricted to rivers near waterfalls. Scarce.
보전 상태
Great Dusky Swift
Waterfall Swift
How to Tell Them Apart
Great Dusky Swift
Very large; entirely dark sooty-brown with pale grey forehead and chin scaling; slightly paler underparts; broad wings; largest Cypseloides swift; South American waterfall specialist with dusky uniform plumage and imposing …
Waterfall Swift
Blackish-brown upperparts with slight gloss; grey-brown underparts paler than back; pale grey-white chin and throat; no rump patch; robust-bodied and large; Southeast Asian waterfall specialist with uniformly dark plumage and …
About These Birds
Great Dusky Swift
18–20 cm의 대형 칼새로 브라질 동남부·파라과이 동부·아르헨티나 북동부에 서식. 어두운 그을린 갈색 깃털. 삼림 협곡과 폭포 위를 날며 먹이를 구하는 공중 곤충식성. 폭포 뒤에 대규모 집단으로 둥지를 튼다. Cypseloides 속의 가장 큰 종.
Waterfall Swift
큰폭풍칼새는 동남아시아 섬 지역에 서식하는 대형 칼새로 특히 말레이시아와 필리핀에 분포한다. 길고 뾰족한 날개와 짧은 꼬리를 가지고 있으며 빠른 속도로 하늘을 가로질러 날아다닌다. 곤충을 주식으로 하며 절벽과 동굴에 둥지를 튼다.