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Version 1.0

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Swallow-tailed Nightjar Uropsalis segmentata

Heidi Henrichs
Version: 1.0 — Published October 3, 2014

Sounds and Vocal Behavior

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The song of male Swallow-tailed Nightjar is described as "unmistakable and beautiful ... a vibrating worr-r-r-e-e-e-e-e-r, at first sliding up, then dropping down" (Ridgely and Greenfield 2001b) and as "a rough growl, rising in pitch and volume, then abruptly falling: wuuurrrRRRREEEEEEERrrrrrrrby" (Lane, in Schulenberg et al 2010). The song is similar to the song of Wattled Guan (Aburria aburri) (Ridgely and Greenfield 2001b), though weaker with a little less variation in pitch. The song is delivered from the ground.

For a representative audio recording with sonogram, see audio

Other vocalizations include "a liquid, rising pwip, and a musical mellow stuttered whistle when agitated" (Lane, in Schulenberg et al. 2010).

Additional aurio recordings of vocalizations of Swallow-tailed Nightjar can be heard at Macaulay Library and at xeno-canto.

Nonvocal Sounds

None reported.

Recommended Citation

Henrichs, H. (2014). Swallow-tailed Nightjar (Uropsalis segmentata), version 1.0. In Neotropical Birds Online (T. S. Schulenberg, Editor). Cornell Lab of Ornithology, Ithaca, NY, USA. https://doi.org/10.2173/nb.swtnig1.01