Cook's Swift vs Chestnut-collared Swift
Apus cooki 比較対象 Streptoprocne rutila
Side-by-Side Comparison
| 属性 | Cook's Swift | Chestnut-collared Swift |
|---|---|---|
| 学名 | Apus cooki | Streptoprocne rutila |
| 目 | Caprimulgiformes | Caprimulgiformes |
| 科 | Apodidae | Apodidae |
| 保全状況 | Not Evaluated | Least Concern |
| 体長 | — | — |
| 翼開長 | — | 26.0 cm (10.2 in) |
| 体重 | 42.949999999999996 g (1.52 oz) | 21.8 g (0.77 oz) |
| 食性 | Catches aerial plankton — tiny midges, gnats, and ballooning spiders — continuously during soaring flight. | Entirely airborne feeder on tiny flies, gnats, and airborne arachnids; one of the most aerial … |
| 一腹卵数 | -- | 2 |
| Population Trend | — | — |
Habitat Comparison
Song & Call Comparison
Cook's Swift
Bright, flute-like series of liquid notes; clear melodic phrase ascending slightly then resolving on a sustained pure tone.
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
Cook's Swift
Found from southern Thailand through the Thai-Malay Peninsula to Sumatra, Borneo, and adjacent islands. Resident in lowland forest.
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
Cook's Swift
Chestnut-collared Swift
How to Tell Them Apart
Cook's Swift
Dark sooty-brown upperparts; white rump patch; pale white throat; dark underparts; deeply forked tail; recently split taxon from Pacific Swift complex; plumage essentially identical to close relatives, distinguished primarily by …
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
Cook's Swift
A medium-sized swift (16-17 cm) found in montane forests from the Malay Peninsula through Southeast Asia to southern China. Dark plumage with a pale throat. Aerial insectivore. Named after Frederick Cook. Until recently considered conspecific with Pacific Swift.
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。