White-tipped Swift Aeronautes montivagus
Version: 1.0 — Published October 10, 2014
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Sounds and Vocal Behavior
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Flight calls of White-tipped Swift are described as "near continuous reeling trills" (Ridgely and Greenfield 2001b); as a "distinctive, rachetlike, buzzing call, j-j-j-j-j-j 'j'j'j'j'J'J'J'J'j'j'j'j'j'j-j-j-j [that] accelerates, [is] loudest in middle, then fades and slows" (Hilty 2003); "a screaming trill given at c.25 notes/s, varying considerably in frequency between individuals or within a call, but typically at c.5-7 kHz" (Donegan et al. 2007); and as "a ringing, grating chatter: bzz-zz'zzz'zzz'zeee'tur'tur" (Lane, in Schulenberg et al. 2010).
For a representative audio recording with sonogram, see audio
Similar calls also are given at the nest.