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Version 1.0

This is a historic version of this account.  Current version


White Hawk Pseudastur albicollis

Brian Magnier and Thomas S. Schulenberg
Version: 1.0 — Published January 25, 2013

Sounds and Vocal Behavior


The call of White Hawk variously is described as "a hoarse, drawn-out, whistled scream, whii-ii-eeihhr or hweeiiihrr, etc. frequently given while soaring; suggests a pig squealing" (Mexico; Howell and Webb 1995); as "a hoarse, scratchy scream sheeeeww or ssshhhww, like long-drawn-out call of Barn Owl [Tyto alba]", frequently given in flight" (Costa Rica; Stiles and Skutch 1989); as "a semi-whistled hissing or buzzy sheeer" (Panama; Ridgely and Gwynne 1989); as "a loud, husky scream shreeeeeerr" (Colombia; Hilty and Brown 1986); as "a loud, husky scream, shrreeeyr, both while soaring and when perched" (Ecuador; Ridgely and Greenfield 2001b); as "a rather high, short scream, screeea, tinny sounding (recalls whistle of Piratic Flycatcher [Legatus leucophaius]" (Venezuela; Hilty 2003); and as "a series of rising whistles: rhee rhee rhee" (Peru; Lane, in Schulenberg et al. 2010).

Additional audio recordings of vocalizations of White Hawk can be heard at Macaulay Library and at xeno-canto.

Nonvocal Sounds

None described.

Recommended Citation

Magnier, B. and T. S. Schulenberg (2013). White Hawk (Pseudastur albicollis), version 1.0. In Neotropical Birds Online (T. S. Schulenberg, Editor). Cornell Lab of Ornithology, Ithaca, NY, USA. https://doi.org/10.2173/nb.whihaw1.01