White-chested Swift vs White-naped Swift
Cypseloides lemosi 비교 대상 Streptoprocne semicollaris
Side-by-Side Comparison
| 속성 | White-chested Swift | White-naped Swift |
|---|---|---|
| 학명 | Cypseloides lemosi | Streptoprocne semicollaris |
| 목 | Caprimulgiformes | Caprimulgiformes |
| 과 | Apodidae | Apodidae |
| 보전 상태 | Least Concern | Least Concern |
| 체장 | — | — |
| 날개 폭 | 30.0 cm (11.8 in) | 44.4 cm (17.5 in) |
| 체중 | 28.400000000000002 g (1.00 oz) | 175.0 g (6.17 oz) |
| 식성 | Obligate aerial forager catching small flies, aphids, winged termites, and airborne spiders on the wing. | Exclusively aerial insectivore catching small flying insects and spiders drifting in aerial plankton at altitude. |
| 산란 수 | -- | 2 |
| 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
White-naped Swift
Very loud screaming trill; deep, powerful 'shreee' from Mexico's largest swift; calls over cliffs and canyons; impressive volume; deeper than White-collared Swift
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.
White-naped Swift
Endemic to Mexico from Nayarit south to Oaxaca. Found in montane forest and canyons at 1,000–3,000 m. Nests behind waterfalls.
보전 상태
White-chested Swift
White-naped Swift
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 …
White-naped Swift
Very large; entirely black with white patch restricted to nape only, not forming a full collar; large square tail; Mexican endemic and the largest swift in Middle America; white nape …
About These Birds
White-chested Swift
14–15 cm의 중형 칼새로 콜롬비아 카우카 상부 계곡 고유종. 흰 가슴 반점이 있는 그을린 흑색 깃털. 아열대림의 공중 곤충식성. 극도로 제한된 분포와 지속적인 서식지 손실로 위기종으로 분류.
White-naped Swift
A large swift (20-22 cm) endemic to Mexico, found in montane regions from Nayarit to Guerrero. Dark plumage with a white half-collar on the nape. Aerial insectivore, foraging over pine-oak forests and barrancas. Nests in large cave colonies. Near Threatened due to limited range.