White-collared Swift vs White-rumped Spinetail
Streptoprocne zonaris comparado con Zoonavena sylvatica
Side-by-Side Comparison
| Atributo | White-collared Swift | White-rumped Spinetail |
|---|---|---|
| Nombre científico | Streptoprocne zonaris | Zoonavena sylvatica |
| Orden | Caprimulgiformes | Caprimulgiformes |
| Familia | Apodidae | Apodidae |
| Estado de conservación | Least Concern | Least Concern |
| Longitud | — | — |
| Envergadura | 42,5 cm (16.7 in) | 22,1 cm (8.7 in) |
| Peso | 106,45 g (3.75 oz) | 13,0 g (0.46 oz) |
| Dieta | Obligate aerial insectivore; gathers small flying insects, winged ants, and airborne spiders during flight. | Catches aerial plankton of small insects and spiders in fast sweeping flight; roosts in rock … |
| Tamaño de la puesta | 2 | 3-5 |
| Population Trend | — | — |
Habitat Comparison
Song & Call Comparison
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
White-rumped Spinetail
Shrill, reedy twittering calls; thin whistled notes cascading rapidly in flight, carrying a faint metallic quality overhead.
Geographic Range & Migration
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.
White-rumped Spinetail
Found in southwestern India (Western Ghats) and Sri Lanka. Resident in humid forest and forest edge in hills up to 1,800 m.
Estado de conservación
White-collared Swift
White-rumped Spinetail
How to Tell Them Apart
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 …
White-rumped Spinetail
Small; dark brown-black upperparts; bright white rump band strongly contrasting with dark back; underparts pale whitish; short spiny tail; South Asian forest species; white rump conspicuous in flight distinguishing it …
About These Birds
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.
White-rumped Spinetail
A small spinetail swift (10-11 cm) found in foothill and montane forests of the Indian subcontinent, from the Himalayas to the Western Ghats and Sri Lanka. Dark plumage with a white rump band and spine-tipped tail. Aerial insectivore. Nests behind waterfalls and in caves.