Tenggara Swiftlet vs Great Dusky Swift
Collocalia sumbawae ile kıyaslandığında Cypseloides senex
Side-by-Side Comparison
| Özellik | Tenggara Swiftlet | Great Dusky Swift |
|---|---|---|
| Bilimsel Ad | Collocalia sumbawae | Cypseloides senex |
| Takım | Caprimulgiformes | Caprimulgiformes |
| Familya | Apodidae | Apodidae |
| Koruma Durumu | Not Evaluated | Least Concern |
| Uzunluk | — | — |
| Kanat Açıklığı | — | 33,8 cm (13.3 in) |
| Ağırlık | 5,9 g (0.21 oz) | 83,0 g (2.93 oz) |
| Beslenme | Aerial plankton specialist catching tiny flies, gnats, and airborne spiders in tight acrobatic flight. | Feeds on aerial plankton of tiny insects and spiders; entire diet captured during non-stop aerial … |
| Kuluçka Büyüklüğü | 1-2 | 1-2 |
| Population Trend | — | — |
Habitat Comparison
Song & Call Comparison
Tenggara Swiftlet
Very high thin twittering; rapid 'tsit' notes over Sumbawa; echolocation clicks used in limestone caves; call among the highest frequency of any swiftlet species
Great Dusky Swift
Loud, churring trill; harsher and louder than other Cypseloides; calls over Iguacu Falls and major Neotropical waterfalls; buzzy 'bzzzt-bzzzt' in aerial groups
Geographic Range & Migration
Tenggara Swiftlet
Endemic to the Lesser Sundas of Indonesia including Sumbawa, Flores, and Timor. Resident in open forest and savanna at low elevations.
Great Dusky Swift
Found in eastern South America from Venezuela and the Guianas south to Bolivia and Paraguay. Resident near rocky cliffs and waterfalls.
Koruma Durumu
Tenggara Swiftlet
Great Dusky Swift
How to Tell Them Apart
Tenggara Swiftlet
Tiny; dark blue-black upperparts with green gloss; pale whitish-buff rump band; dark sooty-grey underparts; Lesser Sunda Islands endemic; extremely similar to Glossy Swiftlet but restricted to eastern Indonesian islands.
Great Dusky Swift
Very large; entirely dark sooty-brown with pale grey forehead and chin scaling; slightly paler underparts; broad wings; largest Cypseloides swift; South American waterfall specialist with dusky uniform plumage and imposing …
About These Birds
Tenggara Swiftlet
A small swiftlet (9-10 cm) endemic to the Lesser Sunda Islands (Sumbawa, Flores, Sumba) of Indonesia. Dark glossy plumage. Aerial insectivore, foraging over forest and open areas. Colonial cave nester. Limited ecological data; restricted island range.
Great Dusky Swift
A large swift (18-20 cm) of southeastern Brazil, eastern Paraguay, and northeastern Argentina. Dark sooty-brown plumage. Aerial insectivore, foraging over forested gorges and waterfalls. Nests in large colonies behind waterfalls. The largest member of the genus Cypseloides.