Bachman's sparrow
Chapter 6: Song Learning Often Creates Complex Songs and Large Repertoires
Subchapter: How a repertoire is delivered
From page 96 in the book.
Photo by Robert Royse
♫426. An enthused dawn chorus, in which he sings just one or two renditions of each of his 30 to 40 different songs types before hustling on to the next. The first three minutes have the following sequence of song types: A B C D E E F G G H H I J I K L M M N N. 6:11 to 6:32 a.m. Sunrise at 6:28 a.m. May 5, 2014. Francis Marion National Forest, South Carolina. (21:12) Recorded by Janet Grenzke.