Vaux's Swift vs White-collared Swift
Chaetura vauxi comparado con Streptoprocne zonaris
Side-by-Side Comparison
| Atributo | Vaux's Swift | White-collared Swift |
|---|---|---|
| Nombre científico | Chaetura vauxi | Streptoprocne zonaris |
| Orden | Caprimulgiformes | Caprimulgiformes |
| Familia | Apodidae | Apodidae |
| Estado de conservación | Least Concern | Least Concern |
| Longitud | — | — |
| Envergadura | 22,3 cm (8.8 in) | 42,5 cm (16.7 in) |
| Peso | 18,033333333333335 g (0.64 oz) | 106,45 g (3.75 oz) |
| Dieta | Exclusively aerial insectivore catching small flying insects and spiders drifting in aerial plankton at altitude. | Obligate aerial insectivore; gathers small flying insects, winged ants, and airborne spiders during flight. |
| Tamaño de la puesta | 1-7 | 2 |
| Population Trend | — | — |
Habitat Comparison
Song & Call Comparison
Vaux's Swift
Soft, high sibilant whisper followed by ticking notes; delicate trill barely audible beyond immediate roosting vicinity.
White-collared Swift
Loud, screaming 'shreee-shreee'; powerful screeching trill; calls from large flocks over mountains; very audible; one of the loudest Neotropical swifts; alarm a harsh rattle
Geographic Range & Migration
Vaux's Swift
Breeds in western North America from Alaska south to Central America. Migrates to winter in Venezuela and northwestern South America.
White-collared Swift
Found from Mexico south through Central America to South America east of the Andes, reaching Bolivia and southern Brazil. Often in large flocks.
Estado de conservación
Vaux's Swift
White-collared Swift
How to Tell Them Apart
Vaux's Swift
Small; dark sooty-brown upperparts; pale grey rump slightly paler than back; underparts pale greyish-brown; short spiny tail; smaller and paler-bellied than Chimney Swift; Pacific coast North American species with subtly …
White-collared Swift
Large; glossy blue-black plumage with bold broad white collar encircling entire neck; collar clean and complete; underparts black; large slightly forked tail; among the most recognisable Neotropical swifts due to …
About These Birds
Vaux's Swift
Vencejo de Vaux (Chaetura vauxi), 10–11 cm. El vencejo más pequeño de Norteamérica. Plumaje pardo grisáceo; rabadilla más pálida. Cola corta. Cría en el oeste de Norteamérica e inverna en América Central y del Sur. Frecuentemente usa chimeneas para nidificar. Gregario en migración.
White-collared Swift
A very large swift (20-22 cm, wingspan 45-55 cm) with a bold white collar band, the largest New World swift. Found from Mexico to southern Brazil and the Caribbean. Aerial insectivore, foraging in large, noisy flocks over forests and cities. Nests behind waterfalls and in caves.