Willet
Chapter 7: When to Sing, and How
Subchapter: Songs and calls in flight
From page 131 in the book.
Photo by John Van de Graaff
♫537. A loud pill-will-willet as the male flies about its territory. June 12, 2009. Malheur National Wildlife Refuge, Burns, Oregon. (4:24)
♫538. Sharp klik klik klik klik calls by what seemed to be an agitated bird flying about its territory, with at least one more bird also calling in the background. June 12, 2009. Malheur National Wildlife Refuge, Burns, Oregon. (7:22)