Mountain bluebird
Chapter 7: When to Sing, and How
Subchapter: Songs and calls in flight
From page 133 in the book.
Photo by John Van de Graaff
♫544. Circling high above Old Faithful, in dawn song, well before the crowds will gather later this morning. 4:30 a.m. 50 minutes before sunrise. June 4, 2009. Above Old Faithful, Yellowstone National Park, Wyoming. (1:36)