Southern Swift vs Black Spinetail
Chaetura meridionalis comparado con Telacanthura melanopygia
Side-by-Side Comparison
| Atributo | Southern Swift | Black Spinetail |
|---|---|---|
| Nombre científico | Chaetura meridionalis | Telacanthura melanopygia |
| Orden | Caprimulgiformes | Caprimulgiformes |
| Familia | Apodidae | Apodidae |
| Estado de conservación | Least Concern | Least Concern |
| Longitud | — | — |
| Envergadura | 26,3 cm (10.4 in) | 32,4 cm (12.8 in) |
| Peso | 19,8 g (0.70 oz) | 52,0 g (1.83 oz) |
| Dieta | Completely aerial diet of small flying insects and spiders; never forages on the ground or … | High-speed aerial insectivore catching small flying insects and aerial spiders during fast sustained flight. |
| Tamaño de la puesta | 3-5 | -- |
| Population Trend | — | — |
Habitat Comparison
Song & Call Comparison
Southern Swift
Faint, thin squealing trill; rapid metallic chips cascading high-pitched over coastal forest, almost ventriloquial in quality.
Black Spinetail
Deep, resonant chattering with gravelly undertones; series of rough churring notes interspersed with sharp screaming calls.
Geographic Range & Migration
Southern Swift
Found in southern South America from Brazil to Argentina. Migratory, moving north to Amazonia during the austral winter. Open areas and forest.
Black Spinetail
Found in West and Central Africa from Nigeria and Cameroon east to Uganda. Resident in lowland rainforest and forest edge.
Estado de conservación
Southern Swift
Black Spinetail
How to Tell Them Apart
Southern Swift
Small; dark sooty-brown overall; pale grey rump band moderately contrasting with dark back; underparts dark grey-brown; short spiny tail; southern South American migratory species; closely resembles Ashy-tailed Swift but rump …
Black Spinetail
Large; entirely black plumage with slight gloss; black rump unlike white-rumped congeners; underparts dark; spiny tail; West African forest species; all-black coloration with no contrasting markings distinguishes it from all …
About These Birds
Southern Swift
Vencejo del sur (Chaetura meridionalis), 11–12 cm. Plumaje pardo-negruzco; rabadilla gris clara contrastante. Cola corta. Habita en América del Sur (Brasil, Paraguay, Argentina). Migrador parcial. Vuela en grupos. A menudo confundido con el vencejo de cola corta; se distingue por la rabadilla más pálida.
Black Spinetail
A medium-sized spinetail swift (14-15 cm) of lowland rainforests in West and Central Africa. All-dark plumage. Spine-tipped tail for bracing against tree trunks. Aerial insectivore, foraging above the forest canopy. Nests inside hollow trees. Uncommon and seldom observed.