Crested Treeswift vs Grey-rumped Treeswift
Hemiprocne coronata 比較対象 Hemiprocne longipennis
Side-by-Side Comparison
| 属性 | Crested Treeswift | Grey-rumped Treeswift |
|---|---|---|
| 学名 | Hemiprocne coronata | Hemiprocne longipennis |
| 目 | Caprimulgiformes | Caprimulgiformes |
| 科 | Hemiprocnidae | Hemiprocnidae |
| 保全状況 | Least Concern | Least Concern |
| 体長 | — | — |
| 翼開長 | 30.4 cm (12.0 in) | 33.5 cm (13.2 in) |
| 体重 | 27.400000000000002 g (0.97 oz) | 35.9 g (1.27 oz) |
| 食性 | Aerial insectivore making sallying flights from an exposed perch to capture flying insects; returns to … | Perch-sallying aerial hunter catching small flying insects, including flies and beetles, in swift low-altitude pursuits. |
| 一腹卵数 | 1 | 1 |
| Population Trend | — | — |
Habitat Comparison
Song & Call Comparison
Crested Treeswift
Loud, shrill 'kik-kik-ki-ki'; sharp metallic screech; calls from high perch in South Asian forest; alarm a rapid screeching series; contact a thin high-pitched whistle
Grey-rumped Treeswift
High, screaming 'keeer-keeer'; shrill piercing calls from forest canopy; metallic quality; calls from prominent high perch in Southeast Asian forest; alarm a sharp scream
Geographic Range & Migration
Crested Treeswift
Found across the Indian subcontinent and Southeast Asia from India east to Indochina. Resident in open deciduous forest and edge up to 1,500 m.
Grey-rumped Treeswift
Found from southern India through the Thai-Malay Peninsula to Sumatra, Java, and Borneo. Resident in open forest and forest edge.
保全状況
Crested Treeswift
Grey-rumped Treeswift
How to Tell Them Apart
Crested Treeswift
Males grey above with blue-grey gloss; long erectile blue-grey crest; chestnut ear patch; white supercilium; underparts white with grey flanks; females similar but lack chestnut ear patch; elegant arboreal treeswift.
Grey-rumped Treeswift
Males dark blue-grey upperparts with grey rump; chestnut ear coverts; white supercilium; underparts whitish with pale grey flanks; females lack chestnut ear patch; notably pale grey rump contrasts with darker …
About These Birds
Crested Treeswift
カンムリフウケイツバメ（Hemiprocne coronata）はインド・スリランカから東南アジアにかけての森林・林縁に生息するフウケイツバメ（体長23〜29 cm）。優雅な長い尾とオスの灰色の体と橙赤色の耳部パッチが特徴。高い木の梢に止まり飛翔昆虫を捕らえる。
Grey-rumped Treeswift
ナガハネフウケイツバメ（Hemiprocne longipennis）はマレー半島・スマトラ・ジャワ・ボルネオなどの東南アジアの低地・丘陵林に生息するフウケイツバメ（体長20〜21 cm）。青灰色の羽衣と長い尾が特徴。木の梢に止まり昆虫を捕らえる。