Eastern phoebe
Chapter 4: How a Bird Gets Its Song
Subchapter: Inborn songs
From page 46 in the book.
♫148. Songs, from Missouri. June 2, 2008. Prairie State Park, Mindenmines, Missouri. (5:28)
♫149. Songs, from Massachusetts, example 1. Background: chipping sparrow, yellow-bellied sapsucker. May 7, 2008. Quabbin Park, Ware, Massachusetts. (8:04)
♫150. Songs, from Massachusetts, example 2. March 29, 2012. Rattlesnake Gutter, Leverett, Massachusetts. (11:54)
♫151. Songs, from Virginia. May 23, 2010. Mountain Lake, Virginia. (2:51)
♫152. Songs, from Texas. Background: mostly Carolina wren. April 16, 2013. Vanderpool, Texas. (1:28)
♫153. Songs, with one FEE-bee and one FEE-b-bre-be from each of the above five recordings, to help emphasize the homogeneity of these inborn songs (and the "song genes") throughout the geographic range of the species. (0:26)
♫154. The puzzling case of a dawn chorus consisting exclusively of the stuttered FEE-b-bre-be songs. 6:16-6:41a.m. Sunrise at 6:39 a.m. April 23, 2018. Atlanta, Michigan. (25:10)