Grey-rumped Treeswift vs Moustached Treeswift
Hemiprocne longipennis 比較対象 Hemiprocne mystacea
Side-by-Side Comparison
| 属性 | Grey-rumped Treeswift | Moustached Treeswift |
|---|---|---|
| 学名 | Hemiprocne longipennis | Hemiprocne mystacea |
| 目 | Caprimulgiformes | Caprimulgiformes |
| 科 | Hemiprocnidae | Hemiprocnidae |
| 保全状況 | Least Concern | Least Concern |
| 体長 | — | — |
| 翼開長 | 33.5 cm (13.2 in) | 43.3 cm (17.0 in) |
| 体重 | 35.9 g (1.27 oz) | 70.16666666666667 g (2.48 oz) |
| 食性 | Perch-sallying aerial hunter catching small flying insects, including flies and beetles, in swift low-altitude pursuits. | Sally-hunting aerial insectivore taking flies, beetles, and winged ants from an exposed tree perch; not … |
| 一腹卵数 | 1 | 1 |
| Population Trend | — | — |
Habitat Comparison
Song & Call Comparison
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
Moustached Treeswift
Loud, screaming 'kreee-kreee'; powerful shrill calls from New Guinea forest edge; largest treeswift; calls from exposed high perch; alarm a rapid piercing scream
Geographic Range & Migration
Grey-rumped Treeswift
Found from southern India through the Thai-Malay Peninsula to Sumatra, Java, and Borneo. Resident in open forest and forest edge.
Moustached Treeswift
Found from the Moluccas and New Guinea east through the Bismarcks and Solomons to Micronesia. Resident in forest edge and open areas.
保全状況
Grey-rumped Treeswift
Moustached Treeswift
How to Tell Them Apart
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 …
Moustached Treeswift
Large treeswift; dark blackish-grey upperparts with greenish gloss; bold white supercilium and long white postocular stripe forming moustache; chestnut ear coverts in male; white underparts; deeply forked long tail; Australasian …
About These Birds
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。
Moustached Treeswift
ヒゲフウケイツバメ（Hemiprocne mystacea）はモルッカ諸島・ニューギニアなどのメラネシア地域の低地・丘陵林に生息するフウケイツバメ（体長24〜30 cm）。白い眉毛と口角ひげが目立つ青灰色の羽衣。高い木の梢に止まり飛翔昆虫を捕らえる。