Vaux's Swift vs White-chested Swift
Chaetura vauxi comparado com Cypseloides lemosi
Side-by-Side Comparison
| Atributo | Vaux's Swift | White-chested Swift |
|---|---|---|
| Nome científico | Chaetura vauxi | Cypseloides lemosi |
| Ordem | Caprimulgiformes | Caprimulgiformes |
| Família | Apodidae | Apodidae |
| Estado de conservação | Least Concern | Least Concern |
| Comprimento | — | — |
| Envergadura | 22,3 cm (8.8 in) | 30,0 cm (11.8 in) |
| Peso | 18,033333333333335 g (0.64 oz) | 28,400000000000002 g (1.00 oz) |
| Dieta | Exclusively aerial insectivore catching small flying insects and spiders drifting in aerial plankton at altitude. | Obligate aerial forager catching small flies, aphids, winged termites, and airborne spiders on the wing. |
| Tamanho da postura | 1-7 | -- |
| 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-chested Swift
High, thin twittering; soft 'tsit' calls in flight; calls over Colombian waterfalls; very poorly known; thin, reedy contact notes; one of most rarely documented swifts
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-chested Swift
Known from Colombia and adjacent Ecuador. One of the world's rarest swifts; recorded at waterfalls in humid forest foothills at 500–1,200 m.
Estado de conservação
Vaux's Swift
White-chested 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-chested Swift
Black upperparts and wings; distinctive large white chest patch contrasting sharply with black throat and belly; white confined to central breast; Colombian endemic with unique bold bicoloured plumage unlike any …
About These Birds
Vaux's Swift
Andorinhão-de-Vaux (Chaetura vauxi), 10–11 cm. O menor andorinhão da América do Norte. Plumagem escura com uropígio e garganta mais claros, partes inferiores acinzentadas. Nidifica em árvores ocas e chaminés no oeste da América do Norte. Migra para a América Central e do Sul no inverno. Captura insetos em voo.
White-chested Swift
A medium-sized swift (14-15 cm) endemic to the upper Cauca Valley of Colombia. Sooty-black plumage with a white breast patch. Aerial insectivore of subtropical forests. Classified as Endangered due to extremely restricted range and ongoing habitat loss.