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Great Dusky Swift

Cypseloides senex

ML201876161

IBC1562911

©
Robert Humphries
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PN Iguazú (area general)
Iguazú, Misiones, Argentina
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Latitude and Longitude -25.698, -54.3938 Map

Age
Unknown
Sex
Unknown
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Breeding
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Specimen ID

Media notes

Great Dusky Swifts clinging to a wet rock face by a waterfall – being covered in spray. Great Dusky Swifts (Cypseloides senex) are found in Brazil, Bolivia, Paraguay and tropical northern Argentina in forested and riverine habitats. It is famous with birders for flying through the curtain of falling water, perching and nesting behind the huge cataracts of Iguazu Falls. This behaviour protects them from most predators, even if the penalty is to be perpetually wet! These adult Great Dusky Swifts were clinging to the rock wall of Alvar Nunez Falls in Argentina’s Iguazu National Park, being covered in spray from the roaring torrent nearby. Elevation: 218 m. Date added to IBC: February 17, 2019.

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