Chestnut-collared Swift vs Pygmy Palm Swift
Streptoprocne rutila comparé à Tachornis furcata
Side-by-Side Comparison
| Attribut | Chestnut-collared Swift | Pygmy Palm Swift |
|---|---|---|
| Nom scientifique | Streptoprocne rutila | Tachornis furcata |
| Ordre | Caprimulgiformes | Caprimulgiformes |
| Famille | Apodidae | Apodidae |
| Statut de conservation | Least Concern | Least Concern |
| Longueur | — | — |
| Envergure | 26,0 cm (10.2 in) | 17,8 cm (7.0 in) |
| Poids | 21,8 g (0.77 oz) | 6,75 g (0.24 oz) |
| Régime alimentaire | Entirely airborne feeder on tiny flies, gnats, and airborne arachnids; one of the most aerial … | Aerial-only diet of small flying insects, winged termites, and drifting spiders caught during continuous flight. |
| Taille de la couvée | 2 | -- |
| Population Trend | — | — |
Habitat Comparison
Song & Call Comparison
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
Pygmy Palm Swift
Tiny, buzzy chips barely audible beyond two metres; minute high-pitched twittering almost disappearing in ambient sound.
Geographic Range & Migration
Chestnut-collared Swift
Found from Mexico and the Caribbean south through Central America and South America to Argentina. Resident in highlands near mountain cliffs.
Pygmy Palm Swift
Found in Venezuela and adjacent Colombia and Guyana. Resident in lowland savanna near Moriche palms; nests inside palm fronds. Uncommon.
Statut de conservation
Chestnut-collared Swift
Pygmy Palm Swift
How to Tell Them Apart
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 …
Pygmy Palm Swift
Tiny, among the world's smallest swifts; dark brown-black overall; pale buff-white rump patch; underparts pale whitish with dark sides; deeply forked tail; Venezuelan and Colombian palm-nesting species; minute size and …
About These Birds
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.
Pygmy Palm Swift
A tiny swift (9-10 cm) of open savannas and palm groves in Colombia and Venezuela. Dark plumage with a pale rump. Long, forked tail. Aerial insectivore associated with Moriche palms (Mauritia flexuosa), nesting inside palm fronds. One of the smallest swifts.