Great Dusky Swift (Cypseloides senex)
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Great Dusky Swift

Cypseloides senex (Temminck, 1826)

18 cmLength82 gWeight

The great dusky swift (Cypseloides senex) is a species of bird in subfamily Cypseloidinae of the swift family Apodidae.

Busiest months: August and October–November · Most records: Argentina, Brazil, Paraguay

Least Concern

Where and when it's recorded

Great Dusky Swift has been recorded at 56 of the 8,171 birding hotspots we track, in 3 countries and regions.

Records by month Southern Hemisphere

Where it's recorded most

  1. PN Iguazú – Área CataratasArgentina1,775 records
  2. PN Iguazú – Sendero MacucoArgentina288 records
  3. PN do Iguaçu – Trilha do Poço PretoBrazil162 records
More places
  1. PN Iguazú – Ruta 101Argentina159 records
  2. PN Serra da CanastraBrazil111 records
  3. 600 hectáreasArgentina98 records
  4. PN Iguazú – Observatorio de Aves Daniel Pupi SomayArgentina97 records
  5. PP Urugua-í – Seccional UruzúArgentina68 records
  6. PN Chapada dos GuimarãesBrazil67 records
  7. Foz do Iguaçu – Centro de Altos Estudos da ConscienciologiaBrazil59 records

Countries and regions with the most records

ArgentinaBrazilParaguay

eBird records via GBIF up to 2024-12-31. A record means someone listed it; more records partly mean more birders, not more birds.

About

The great dusky swift (Cypseloides senex) is a species of bird in subfamily Cypseloidinae of the swift family Apodidae. It is found in Argentina, Brazil, Paraguay, and possibly Bolivia.

Excerpt from Wikipedia, CC BY-SA 4.0 · authors · Read more on Wikipedia

Questions

How big is the Great Dusky Swift?

The Great Dusky Swift is about 18 cm long and weighs around 82 g.

Where does the Great Dusky Swift live?

Its breeding range: South America: central Brazil to northeastern Bolivia, eastern Paraguay and northeastern Argentina. It is most often recorded in Argentina, Brazil and Paraguay.

When is the best time to see the Great Dusky Swift?

At the hotspots we track, it is recorded most in August, October and November (Southern Hemisphere).

Is the Great Dusky Swift endangered?

The IUCN Red List classifies the Great Dusky Swift as Least Concern.

What does the Great Dusky Swift eat?

Main food: Insects & other invertebrates.

What family is the Great Dusky Swift in?

It belongs to the family Swifts (Apodidae), order Apodiformes.

At a glance

Length
18 cm
Weight
82 g
Habitat
Forest
Diet
Insects & other invertebrates
Lifestyle
Feeds in the air
Migration
Resident (barely migrates)
Conservation
Least Concern
More measurements
Wing
169 mm
Tail
56 mm
Bill
8 mm
Tarsus
23 mm

Averages from the AVONET dataset; length from field guides where available.

Range

South America: central Brazil to northeastern Bolivia, eastern Paraguay and northeastern Argentina

Breeding range, IOC World Bird List 15.2

Classification

Family
Swifts Apodidae
Genus
Cypseloides

Other birds in the genus Cypseloides

Great Dusky Swift

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