Chipping sparrow
Chapter 7: When to Sing, and How
Subchapter: Energized dawn singing
From page 120 in the book.
♫497. An example of longish daytime songs, typically given while a male is perched high in a tree. June 2, 2014. Mt. Greylock State Park, North Adams, Massachusetts. (3:00)
♫498. At dawn, several males gather, typically on the ground, sparring with brief song-bursts. Details on how to listen are in the book's text. May 29, 2008. Hawn State Park, Ste. Genevieve, Missouri. (5:00)