Sabine's Spinetail vs Chestnut-collared Swift
Rhaphidura sabini 比較対象 Streptoprocne rutila
Side-by-Side Comparison
| 属性 | Sabine's Spinetail | Chestnut-collared Swift |
|---|---|---|
| 学名 | Rhaphidura sabini | Streptoprocne rutila |
| 目 | Caprimulgiformes | Caprimulgiformes |
| 科 | Apodidae | Apodidae |
| 保全状況 | Least Concern | Least Concern |
| 体長 | — | — |
| 翼開長 | 24.7 cm (9.7 in) | 26.0 cm (10.2 in) |
| 体重 | 17.75 g (0.63 oz) | 21.8 g (0.77 oz) |
| 食性 | Aerial insectivore feeding on tiny flies, beetles, and ballooning spiders in rapid powerful aerial pursuit. | 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
共通生息地
Sabine's Spinetail only
Chestnut-collared Swift only
None
Song & Call Comparison
Sabine's Spinetail
Faint, needle-thin whistle tapering at the end; soft twittering interspersed with clicking flight notes, barely audible.
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
Sabine's Spinetail
Found in West and Central Africa from Sierra Leone east to the DRC and Uganda. Resident in lowland rainforest and forest edge.
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
Sabine's Spinetail
Chestnut-collared Swift
How to Tell Them Apart
Sabine's Spinetail
Small; dark blackish-brown upperparts; white rump patch; underparts pale grey-white; short spiny tail; West African rainforest species; closely resembles Silver-rumped Spinetail but purer white rump with less silvery sheen.
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
Sabine's Spinetail
A small spinetail swift (11-12 cm) of lowland forests across West and Central Africa. Dark plumage with a white rump patch. Spine-tipped tail. Aerial insectivore, often seen foraging over forest canopy in mixed-species swift flocks. Nests in hollow trees.
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。