Spot-fronted Swift vs Chestnut-collared Swift
Cypseloides cherriei เปรียบเทียบกับ Streptoprocne rutila
Side-by-Side Comparison
| คุณสมบัติ | Spot-fronted Swift | Chestnut-collared Swift |
|---|---|---|
| ชื่อวิทยาศาสตร์ | Cypseloides cherriei | Streptoprocne rutila |
| อันดับ | Caprimulgiformes | Caprimulgiformes |
| วงศ์ตระกูล | Apodidae | Apodidae |
| สถานะการอนุรักษ์ | Least Concern | Least Concern |
| ความยาว | — | — |
| กว้างปีก | 25.0 cm (9.8 in) | 26.0 cm (10.2 in) |
| น้ำหนัก | 22.725 g (0.80 oz) | 21.8 g (0.77 oz) |
| อาหาร | Feeds aerially on tiny insects and spiders, often following weather fronts where aerial plankton concentrates. | Entirely airborne feeder on tiny flies, gnats, and airborne arachnids; one of the most aerial … |
| จำนวนไข่ | 1 | 2 |
| Population Trend | — | — |
Habitat Comparison
Song & Call Comparison
Spot-fronted Swift
Soft 'chip-chip' notes; thin, quiet twittering in flight; calls over Colombian waterfalls and mountain streams; high-pitched weak trills; rarely vocal away from breeding
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
Spot-fronted Swift
Found in disjunct montane populations from Costa Rica and Venezuela south to Ecuador. Rare; associated with waterfalls at 600–2,000 m elevation.
Chestnut-collared Swift
Found from Mexico and the Caribbean south through Central America and South America to Argentina. Resident in highlands near mountain cliffs.
สถานะการอนุรักษ์
Spot-fronted Swift
Chestnut-collared Swift
How to Tell Them Apart
Spot-fronted Swift
Sooty-black overall with distinctive white-spotted forehead; throat shows pale grey-white scaling; no other markings; dark uniform body contrasts with the unique white-spotted loral and frontal spots that name the species.
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
Spot-fronted Swift
A medium-sized dark swift (13-14 cm) of montane forests in Costa Rica and western Panama. Sooty-black plumage with white loral spots. Aerial insectivore, foraging high over forested ravines and mountain ridges. Rare and poorly known; classified as Near Threatened.
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.