White-chested Swift vs Sao Tome Spinetail
Cypseloides lemosi 对比 Zoonavena thomensis
Side-by-Side Comparison
| 属性 | White-chested Swift | Sao Tome Spinetail |
|---|---|---|
| 学名 | Cypseloides lemosi | Zoonavena thomensis |
| 目 | Caprimulgiformes | Caprimulgiformes |
| 科 | Apodidae | Apodidae |
| 保护状况 | Least Concern | Least Concern |
| 体长 | — | — |
| 翼展 | 30.0 cm (11.8 in) | 21.9 cm (8.6 in) |
| 体重 | 28.400000000000002 g (1.00 oz) | 8.0 g (0.28 oz) |
| 食性 | Obligate aerial forager catching small flies, aphids, winged termites, and airborne spiders on the wing. | Aerial insectivore feeding on tiny flies, beetles, and ballooning spiders in rapid powerful aerial pursuit. |
| 产卵数 | -- | 2-4 |
| Population Trend | — | — |
Habitat Comparison
Song & Call Comparison
White-chested Swift
High, thin twittering; soft 'tsit' calls in flight; calls over Colombian waterfalls; very poorly known; thin, reedy contact notes; one of most rarely documented swifts
Sao Tome Spinetail
Sharp, high-frequency twittering with staccato clicking notes; rapid-fire chips strung together in buzzy aerial sequences.
Geographic Range & Migration
White-chested Swift
Known from Colombia and adjacent Ecuador. One of the world's rarest swifts; recorded at waterfalls in humid forest foothills at 500–1,200 m.
Sao Tome Spinetail
Endemic to São Tomé Island in the Gulf of Guinea. Resident in lowland forest and forest edge. Small island population vulnerable to habitat loss.
保护状况
White-chested Swift
Sao Tome Spinetail
How to Tell Them Apart
White-chested Swift
Black upperparts and wings; distinctive large white chest patch contrasting sharply with black throat and belly; white confined to central breast; Colombian endemic with unique bold bicoloured plumage unlike any …
Sao Tome Spinetail
Tiny; dark blackish-brown upperparts; white rump patch; pale whitish underparts; short spiny tail; São Tomé Island endemic; very similar to Madagascar Spinetail but restricted to Gulf of Guinea; one of …
About These Birds
White-chested Swift
哥伦比亚雨燕限于哥伦比亚南部，是罕见的雨燕。
Sao Tome Spinetail
A medium-sized spinetail swift (12-13 cm) endemic to the islands of São Tomé and Príncipe in the Gulf of Guinea. Dark plumage. Aerial insectivore, foraging over forest canopy. Colonial nester. Restricted range on two small islands. Classified as Near Threatened.