Pallid Swift vs White-fronted Swift
Apus pallidus 비교 대상 Cypseloides storeri
Side-by-Side Comparison
| 속성 | Pallid Swift | White-fronted Swift |
|---|---|---|
| 학명 | Apus pallidus | Cypseloides storeri |
| 목 | Caprimulgiformes | Caprimulgiformes |
| 과 | Apodidae | Apodidae |
| 보전 상태 | Least Concern | Data Deficient |
| 체장 | — | — |
| 날개 폭 | 33.4 cm (13.1 in) | 27.4 cm (10.8 in) |
| 체중 | 42.25 g (1.49 oz) | 39.25 g (1.38 oz) |
| 식성 | Aerial insectivore foraging continuously in flight, taking tiny flies, beetles, and ballooning spiders. | Obligate aerial insectivore; takes small flies, beetles, and aerial spiders in swooping fast-flight passes. |
| 산란 수 | 1-4 | -- |
| Population Trend | — | — |
Habitat Comparison
Song & Call Comparison
Pallid Swift
Melodic, rolling trill with rich timbre; sustained musical phrase with slight variations on repeated delivery at dusk.
White-fronted Swift
Poorly known vocalizations; thin twittering presumed; calls over Mexican montane waterfalls; high-pitched soft chip notes; very rarely documented; data-deficient species
Geographic Range & Migration
Pallid Swift
Breeds in the Mediterranean and North Africa east to Pakistan. Migratory; winters in sub-Saharan Africa from Senegal to Ethiopia.
White-fronted Swift
Endemic to western Mexico from Jalisco to Oaxaca. Resident in forested highlands near canyon streams at 1,000–2,500 m. Poorly known.
보전 상태
Pallid Swift
White-fronted Swift
How to Tell Them Apart
Pallid Swift
Medium-large; pale brownish-grey overall, distinctly paler than Common Swift; larger pale throat patch; wing coverts show pale scaly edges; Mediterranean and Middle Eastern species; pale sandy-brown tone separates it from …
White-fronted Swift
Blackish-brown throughout with a prominent white frontal patch on forehead and lores; no other pale markings; slightly paler brownish below; poorly known Mexican endemic known from very few specimens.
About These Birds
Pallid Swift
창백한 칼새는 지중해와 중동, 아시아 중부에서 번식하고 아프리카에서 월동합니다. 연한 갈색 깃털과 목의 연한 색이 특징이며, 절벽과 건물에서 번식합니다.
White-fronted Swift
14 cm의 중형 칼새로 멕시코 서부 1,500–3,000m 고도 산지림 고유종. 흰 이마 반점이 있는 그을린 흑색 깃털. 삼림 산지사면 위를 날며 먹이를 구하는 공중 곤충식성. 가장 알려지지 않은 신열대 칼새 중 하나. 취약종으로 분류.