Pallid Swift vs Sao Tome Spinetail
Apus pallidus comparado com Zoonavena thomensis
Side-by-Side Comparison
| Atributo | Pallid Swift | Sao Tome Spinetail |
|---|---|---|
| Nome científico | Apus pallidus | Zoonavena thomensis |
| Ordem | Caprimulgiformes | Caprimulgiformes |
| Família | Apodidae | Apodidae |
| Estado de conservação | Least Concern | Least Concern |
| Comprimento | — | — |
| Envergadura | 33,4 cm (13.1 in) | 21,9 cm (8.6 in) |
| Peso | 42,25 g (1.49 oz) | 8,0 g (0.28 oz) |
| Dieta | Aerial insectivore foraging continuously in flight, taking tiny flies, beetles, and ballooning spiders. | Aerial insectivore feeding on tiny flies, beetles, and ballooning spiders in rapid powerful aerial pursuit. |
| Tamanho da postura | 1-4 | 2-4 |
| Population Trend | — | — |
Habitat Comparison
Song & Call Comparison
Pallid Swift
Melodic, rolling trill with rich timbre; sustained musical phrase with slight variations on repeated delivery at dusk.
Sao Tome Spinetail
Sharp, high-frequency twittering with staccato clicking notes; rapid-fire chips strung together in buzzy aerial sequences.
Geographic Range & Migration
Pallid Swift
Breeds in the Mediterranean and North Africa east to Pakistan. Migratory; winters in sub-Saharan Africa from Senegal to Ethiopia.
Sao Tome Spinetail
Endemic to São Tomé Island in the Gulf of Guinea. Resident in lowland forest and forest edge. Small island population vulnerable to habitat loss.
Estado de conservação
Pallid Swift
Sao Tome Spinetail
How to Tell Them Apart
Pallid Swift
Medium-large; pale brownish-grey overall, distinctly paler than Common Swift; larger pale throat patch; wing coverts show pale scaly edges; Mediterranean and Middle Eastern species; pale sandy-brown tone separates it from …
Sao Tome Spinetail
Tiny; dark blackish-brown upperparts; white rump patch; pale whitish underparts; short spiny tail; São Tomé Island endemic; very similar to Madagascar Spinetail but restricted to Gulf of Guinea; one of …
About These Birds
Pallid Swift
A medium-sized swift (16-17 cm) similar to Common Swift but paler, sandy-brown overall with a larger white throat patch. Found across southern Europe, North Africa, and the Middle East. Aerial insectivore. Long-distance migrant wintering in sub-Saharan Africa and South Asia.
Sao Tome Spinetail
A medium-sized spinetail swift (12-13 cm) endemic to the islands of São Tomé and Príncipe in the Gulf of Guinea. Dark plumage. Aerial insectivore, foraging over forest canopy. Colonial nester. Restricted range on two small islands. Classified as Near Threatened.