Pallid Swift vs Chimney Swift
Apus pallidus comparado con Chaetura pelagica
Side-by-Side Comparison
| Atributo | Pallid Swift | Chimney Swift |
|---|---|---|
| Nombre científico | Apus pallidus | Chaetura pelagica |
| Orden | Caprimulgiformes | Caprimulgiformes |
| Familia | Apodidae | Apodidae |
| Estado de conservación | Least Concern | Vulnerable |
| Longitud | — | — |
| Envergadura | 33,4 cm (13.1 in) | 24,9 cm (9.8 in) |
| Peso | 42,25 g (1.49 oz) | 22,666666666666668 g (0.80 oz) |
| Dieta | Aerial insectivore foraging continuously in flight, taking tiny flies, beetles, and ballooning spiders. | Aerial forager on tiny insects and wind-dispersed spiders; forages near water surfaces where insects concentrate. |
| Tamaño de la puesta | 1-4 | 2-7 |
| 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.
Chimney Swift
Rapid, liquid twittering with bright cheerful quality; chi-chi-chi staccato notes carrying well across open sky at dusk.
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.
Chimney Swift
Breeds in eastern North America from Canada south to Texas. Long-distance migrant wintering in the upper Amazon basin of Peru and Brazil.
Estado de conservación
Pallid Swift
Chimney 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 …
Chimney Swift
Small; uniformly dark sooty-grey overall with slightly paler grey throat and chin; no contrasting rump patch; short spiny tail; sexes identical; North American chimney-nesting species famous for its swirling pre-roost …
About These Birds
Pallid Swift
A medium-sized swift (16-17 cm) similar to Common Swift but paler, sandy-brown overall with a larger white throat patch. Found across southern Europe, North Africa, and the Middle East. Aerial insectivore. Long-distance migrant wintering in sub-Saharan Africa and South Asia.
Chimney Swift
Vencejo de chimenea (Chaetura pelagica), 12–14 cm. Plumaje gris oscuro uniforme; garganta gris pálida. Cola muy corta y espinosa. Antes nidificaba en árboles huecos, ahora principalmente en chimeneas. Gran migrador: cría en el este de Norteamérica e inverna en el oeste de América del Sur.