Böhm's Spinetail vs Chestnut-collared Swift
Neafrapus boehmi 比較対象 Streptoprocne rutila
Side-by-Side Comparison
| 属性 | Böhm's Spinetail | Chestnut-collared Swift |
|---|---|---|
| 学名 | Neafrapus boehmi | Streptoprocne rutila |
| 目 | Caprimulgiformes | Caprimulgiformes |
| 科 | Apodidae | Apodidae |
| 保全状況 | Least Concern | Least Concern |
| 体長 | — | — |
| 翼開長 | 24.0 cm (9.4 in) | 26.0 cm (10.2 in) |
| 体重 | 16.225 g (0.57 oz) | 21.8 g (0.77 oz) |
| 食性 | Aerial diet of small flying insects and spiders; forages at speed over forest and open … | Entirely airborne feeder on tiny flies, gnats, and airborne arachnids; one of the most aerial … |
| 一腹卵数 | 2-3 | 2 |
| Population Trend | — | — |
Habitat Comparison
Song & Call Comparison
Böhm's Spinetail
Soft, high twittering with delicate sibilant quality; rapid flutter of tiny notes almost insect-like in pitch and rhythm.
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
Böhm's Spinetail
Found in Central and East Africa from Cameroon east to Tanzania and Mozambique. Resident in open forest; often associated with baobab trees.
Chestnut-collared Swift
Found from Mexico and the Caribbean south through Central America and South America to Argentina. Resident in highlands near mountain cliffs.
保全状況
Böhm's Spinetail
Chestnut-collared Swift
How to Tell Them Apart
Böhm's Spinetail
Small; dark brown-black upperparts; white rump patch; pale whitish underparts; very short stubby tail with prominent spiny tips; East African savanna species; tiny bat-like fluttering flight aided by extremely short …
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
Böhm's Spinetail
A small swift (9-10 cm) of miombo woodland and open savanna across eastern and southern Africa. Dark plumage with a white rump and belly. Short, spine-tipped tail. Aerial insectivore with distinctive fluttering, bat-like flight low over the treetops.
Chestnut-collared Swift
チェストナットカラードスウィフトは中央アメリカと南アメリカ北部の山岳地帯に生息するアマツバメである。