Sooty Swift vs Chestnut-collared Swift
Cypseloides fumigatus в сравнении с Streptoprocne rutila
Side-by-Side Comparison
| Характеристика | Sooty Swift | Chestnut-collared Swift |
|---|---|---|
| Научное название | Cypseloides fumigatus | Streptoprocne rutila |
| Отряд | Caprimulgiformes | Caprimulgiformes |
| Семейство | Apodidae | Apodidae |
| Охранный статус | Least Concern | Least Concern |
| Длина | — | — |
| Размах крыльев | 29,0 cm (11.4 in) | 26,0 cm (10.2 in) |
| Масса | 41,666666666666664 g (1.47 oz) | 21,8 g (0.77 oz) |
| Питание | Catches aerial plankton — tiny midges, gnats, and ballooning spiders — continuously during soaring flight. | Entirely airborne feeder on tiny flies, gnats, and airborne arachnids; one of the most aerial … |
| Размер кладки | 1 | 2 |
| Population Trend | — | — |
Habitat Comparison
Song & Call Comparison
Sooty Swift
Soft twittering 'tsit-tsit'; thin, buzzy notes in flight; calls over Neotropical waterfalls and gorges; quiet, raspy trill; rarely as vocal as larger swift species
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
Sooty Swift
Found in the Guiana Shield and Amazon Basin in Brazil, Venezuela, and the Guianas. Nomadic; associated with rocky outcrops and waterfalls.
Chestnut-collared Swift
Found from Mexico and the Caribbean south through Central America and South America to Argentina. Resident in highlands near mountain cliffs.
Охранный статус
Sooty Swift
Chestnut-collared Swift
How to Tell Them Apart
Sooty Swift
Uniformly dark sooty-brown plumage throughout; no contrasting pale markings anywhere; slightly paler brownish-grey on throat; large and uniform; South American species whose entirely dark coloration recalls blackish swiftlets but much …
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
Sooty Swift
A medium-sized swift (15-17 cm) found in subtropical and montane forests of southeastern Brazil, Paraguay, and Argentina. Sooty-brown plumage. Aerial insectivore, foraging over forested gorges and waterfalls. Nests behind waterfalls on wet rock faces.
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.