Pallid Swift vs White-throated Needletail
Apus pallidus comparado con Hirundapus caudacutus
Side-by-Side Comparison
| Atributo | Pallid Swift | White-throated Needletail |
|---|---|---|
| Nombre científico | Apus pallidus | Hirundapus caudacutus |
| Orden | Caprimulgiformes | Caprimulgiformes |
| Familia | Apodidae | Apodidae |
| Estado de conservación | Least Concern | Least Concern |
| Longitud | — | — |
| Envergadura | 33,4 cm (13.1 in) | 41,2 cm (16.2 in) |
| Peso | 42,25 g (1.49 oz) | 101,475 g (3.58 oz) |
| Dieta | Aerial insectivore foraging continuously in flight, taking tiny flies, beetles, and ballooning spiders. | High-speed aerial insectivore catching small flying insects and aerial spiders during fast sustained flight. |
| Tamaño de la puesta | 1-4 | 2-7 |
| Population Trend | — | — |
Habitat Comparison
Hábitats compartidos
Pallid Swift only
White-throated Needletail only
Song & Call Comparison
Pallid Swift
Melodic, rolling trill with rich timbre; sustained musical phrase with slight variations on repeated delivery at dusk.
White-throated Needletail
Powerful, loud churring rattle descending in pitch; deep resonant trill audible from great distance, forceful and sustained.
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-throated Needletail
Breeds in Siberia, China, Japan, and the Himalayas. Long-distance migrant wintering in Australasia and Southeast Asia. Breeds in forests and cliffs.
Estado de conservación
Pallid Swift
White-throated Needletail
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-throated Needletail
Large; dark blackish-brown upperparts with metallic green gloss; white throat and undertail coverts; pale white back saddle between wings; short spiny tail; one of the world's fastest birds; white throat …
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.
White-throated Needletail
El vencejo de aguja mayor es un vencejo grande de Asia oriental y el sur de Asia. Tiene alas largas y estrechas, una garganta blanca y una colorida mancha en la rabadilla. Uno de los pájaros más rápidos del mundo en vuelo. Pasa la mayor parte de su vida en vuelo, alimentándose de insectos. Migra entre los sitios de cría del este asiático y los de invernada en Australia.