Short-tailed Swift vs Alpine Swift
Chaetura brachyura verglichen mit Tachymarptis melba
Side-by-Side Comparison
| Merkmal | Short-tailed Swift | Alpine Swift |
|---|---|---|
| Wissenschaftlicher Name | Chaetura brachyura | Tachymarptis melba |
| Ordnung | Caprimulgiformes | Caprimulgiformes |
| Familie | Apodidae | Apodidae |
| Erhaltungsstatus | Least Concern | Least Concern |
| Länge | — | — |
| Flügelspannweite | 23,7 cm (9.3 in) | 43,9 cm (17.3 in) |
| Gewicht | 18,625 g (0.66 oz) | 97,5 g (3.44 oz) |
| Ernährung | Feeds exclusively on aerial plankton — tiny flies, aphids, and spiders — captured in continuous … | Aerial insectivore taking small flying insects and spiders; may forage at great heights following thermal … |
| Gelegegröße | 2-7 | 1-4 |
| Population Trend | — | — |
Habitat Comparison
Song & Call Comparison
Short-tailed Swift
Harsh, screaming chatter with emphatic delivery; loud coarse notes erupting suddenly during competitive aerial encounters.
Alpine Swift
Rapid series of short, clipped whistles; bright, clean notes delivered in quick succession with occasional doubled phrase.
Geographic Range & Migration
Short-tailed Swift
Found across South America east of the Andes, from Trinidad and the Guianas south to Bolivia and the Río de la Plata. Lowland forest.
Alpine Swift
Breeds from southern Europe and North Africa east through Central Asia and the Himalayas to India. Migratory; winters in sub-Saharan Africa.
Erhaltungsstatus
Short-tailed Swift
Alpine Swift
How to Tell Them Apart
Short-tailed Swift
Small; dark sooty-brown upperparts; very pale whitish rump and tail contrasting sharply with dark body; underparts pale greyish; extremely short tail giving distinctive blunt-ended flight silhouette; widespread Trinidad to Argentina.
Alpine Swift
Large; dark brown upperparts; white throat patch separated from white belly by dark brown breast band; brown flanks; bold tricoloured underpart pattern; one of Europe's largest swifts with distinctive white …
About These Birds
Short-tailed Swift
A small swift (10-11 cm) found in lowland forests from Panama to southern Brazil and Trinidad. Dark plumage with a noticeably short, square tail with spine tips. Aerial insectivore, foraging over forest canopy and clearings. The smallest member of the genus Chaetura.
Alpine Swift
A large swift (20-22 cm, wingspan 54-60 cm) with a white belly and throat contrasting with dark brown upperparts. Found from southern Europe and Africa to Central Asia. Aerial insectivore, foraging at great heights. Nests on cliff faces in large colonies. Powerful, fast flier.