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Side-by-Side Comparison

属性	Cape Verde Swift	Pallid Swift
学名	Apus alexandri	Apus pallidus
目	Caprimulgiformes	Caprimulgiformes
科	Apodidae	Apodidae
保全状況	Least Concern	Least Concern
体長	—	—
翼開長	27.5 cm (10.8 in)	33.4 cm (13.1 in)
体重	39.4 g (1.39 oz)	42.25 g (1.49 oz)
食性	Obligate aerial insectivore; gathers small flying insects, winged ants, and airborne spiders during flight.	Aerial insectivore foraging continuously in flight, taking tiny flies, beetles, and ballooning spiders.
一腹卵数	2	1-4
Population Trend	—	—

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Habitat Comparison

共通生息地

None

Cape Verde Swift only

None

Pallid Swift only

🌾 Grassland 🏖️ Coastal

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Song & Call Comparison

Cape Verde Swift

さえずり

Soft, musical whistling with smooth melodic quality; clear, unhurried phrases rising and falling gently in warm afternoon air.

Pallid Swift

さえずり

Melodic, rolling trill with rich timbre; sustained musical phrase with slight variations on repeated delivery at dusk.

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Geographic Range & Migration

Cape Verde Swift

Endemic to the Cape Verde Islands in the eastern Atlantic. Resident on several islands including São Vicente and Santo Antão.

Pallid Swift

Breeds in the Mediterranean and North Africa east to Pakistan. Migratory; winters in sub-Saharan Africa from Senegal to Ethiopia.

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保全状況

Least Concern

Cape Verde Swift

Least Concern

Pallid Swift

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How to Tell Them Apart

Cape Verde Swift

羽毛

Dark sooty-brown overall; pale grey-white throat patch; underparts slightly paler brown; moderately forked tail; Cape Verde Islands endemic; similar to Common Swift but slightly smaller with more extensive pale throat …

Pallid Swift

羽毛

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 …

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About These Birds

Cape Verde Swift

カーボベルデアマツバメはカーボベルデ諸島固有のアマツバメで、島嶼環境に適応した特有の種である。

Pallid Swift

カフリアマツバメは地中海沿岸やアフリカ北部に繁殖し、ヨーロッパアマツバメより淡い色合いが特徴的である。

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