Costa Rican Swift vs Chestnut-collared Swift
Chaetura fumosa so với Streptoprocne rutila
Side-by-Side Comparison
| Thuộc Tính | Costa Rican Swift | Chestnut-collared Swift |
|---|---|---|
| Tên Khoa Học | Chaetura fumosa | Streptoprocne rutila |
| Bộ | Caprimulgiformes | Caprimulgiformes |
| Họ | Apodidae | Apodidae |
| Tình Trạng Bảo Tồn | Least Concern | Least Concern |
| Chiều Dài | — | — |
| Chiều Dài Sải Cánh | 21,2 cm (8.3 in) | 26,0 cm (10.2 in) |
| Khối Lượng | 18,2 g (0.64 oz) | 21,8 g (0.77 oz) |
| Chế Độ Ăn | Entirely airborne feeder on tiny flies, gnats, and airborne arachnids; one of the most aerial … | Entirely airborne feeder on tiny flies, gnats, and airborne arachnids; one of the most aerial … |
| Số Trứng | -- | 2 |
| Population Trend | — | — |
Habitat Comparison
Song & Call Comparison
Costa Rican Swift
Thin, insect-like buzz alternating with soft clicks; delicate high trill delivered during swift wheeling flight over valleys.
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
Costa Rican Swift
Found along the Pacific slope of Costa Rica and Panama. Resident in lowland and foothill forest and forest edge below 1,000 m.
Chestnut-collared Swift
Found from Mexico and the Caribbean south through Central America and South America to Argentina. Resident in highlands near mountain cliffs.
Tình Trạng Bảo Tồn
Costa Rican Swift
Chestnut-collared Swift
How to Tell Them Apart
Costa Rican Swift
Small; uniformly dark sooty-brown with rump barely paler than dark back; underparts dark grey-brown; short spiny tail; Central American Pacific slope species; exceptionally dark and uniform compared to most Chaetura …
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
Costa Rican Swift
A small swift (11 cm) endemic to the Pacific slope of Costa Rica and western Panama. Dark plumage with a pale grey rump band. Spine-tipped tail. Aerial insectivore of humid forest canopy. Poorly known; restricted range in Central American lowland forests.
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.