Silver-rumped Spinetail vs Chestnut-collared Swift
Rhaphidura leucopygialis comparado com Streptoprocne rutila
Side-by-Side Comparison
| Atributo | Silver-rumped Spinetail | Chestnut-collared Swift |
|---|---|---|
| Nome científico | Rhaphidura leucopygialis | Streptoprocne rutila |
| Ordem | Caprimulgiformes | Caprimulgiformes |
| Família | Apodidae | Apodidae |
| Estado de conservação | Least Concern | Least Concern |
| Comprimento | — | — |
| Envergadura | 23,2 cm (9.1 in) | 26,0 cm (10.2 in) |
| Peso | 13,65 g (0.48 oz) | 21,8 g (0.77 oz) |
| Dieta | Obligate aerial forager on small insects and airborne spiders; among the fastest-flying of all swift … | Entirely airborne feeder on tiny flies, gnats, and airborne arachnids; one of the most aerial … |
| Tamanho da postura | -- | 2 |
| Population Trend | — | — |
Habitat Comparison
Habitats partilhados
Silver-rumped Spinetail only
Chestnut-collared Swift only
Nenhum
Song & Call Comparison
Silver-rumped Spinetail
High, thin squeaking notes delivered at rapid pace; silvery twittering with brief pauses forming loose conversational chatter.
Chestnut-collared Swift
High, screaming trill; rapid 'scree-scree' in flight; shrill and penetrating; calls over Neotropical mountains and canyon edges; alarm a rapid screeching chatter
Geographic Range & Migration
Silver-rumped Spinetail
Found from Myanmar and the Thai-Malay Peninsula south through Sumatra and Borneo. Resident in lowland and hill forest. Uncommon.
Chestnut-collared Swift
Found from Mexico and the Caribbean south through Central America and South America to Argentina. Resident in highlands near mountain cliffs.
Estado de conservação
Silver-rumped Spinetail
Chestnut-collared Swift
How to Tell Them Apart
Silver-rumped Spinetail
Small; dark blackish-brown upperparts; silvery-white rump band gleaming in flight; underparts pale whitish-grey; short spiny tail tips; Sundaic forest specialist; silvery rather than clean white rump distinguishes from White-rumped Spinetail.
Chestnut-collared Swift
Dark blackish-brown body with diagnostic rich chestnut collar encircling entire neck; collar bold and complete; underparts slightly paler brown; small swift with striking warm-toned neck band contrasting vividly with dark …
About These Birds
Silver-rumped Spinetail
A small spinetail swift (10-11 cm) found in lowland forests from the Malay Peninsula through Sumatra and Borneo. Dark plumage with a conspicuous silvery-white rump. Spine-tipped tail. Aerial insectivore, often foraging in small flocks over forest canopy and rivers.
Chestnut-collared Swift
A small swift (13-14 cm) found from Mexico through Central America and South America to Bolivia and Brazil. Dark plumage with a distinctive chestnut collar and throat. Aerial insectivore, often foraging in mixed-species swift flocks over forests and highlands.