The Great Dusky Swift , Cypseloides Senex , Is A Species Of Swift In The Apodida ...
Stockphoto ID: 2800287
File name: Arg_Brazil_Iguasu_3745.jpg
Format: digital, 4000+ pixels longest side
Property release: no Model release: no
Source: photographer Based in: Australia
Description: The Great Dusky Swift , Cypseloides senex , is a species of swift in the Apodidae family . At Iguassu Falls , Brazil , Argentina , South America . Iguaçu . Iguazú . These little birds fly right through the waterfalls and hang on the cliffs behind . This behaviour has developed as protection against predatory birds like vultures and hawks .
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