Mourning dove
Chapter 2: Birds and Their Sounds
Subchapter: Mechanical (non-vocal) sounds
From page 21 in the book.
Photo by Wil Hershberger
♫63. Whistling wings on landing and takeoff, accompanied by relatively loud songs from a spotted towhee (e.g., at 0:06, 0:12, etc.); these are the "mountain" spotted towhees, who have more introductory notes to their songs than do the spotted towhees nearer the Pacific Ocean (e.g., ♫257, ♫423). June 8, 2008. Temple Canyon Park, Cañon City, Colorado. (0:30)