Dark-eyed junco
Chapter 6: Song Learning Often Creates Complex Songs and Large Repertoires
Subchapter: Song complexity
From page 81 in the book.
_3141.jpg)
Photo by Laure Wilson Neish
♫370. Songs of the dark-eyed junco are sometimes difficult to distinguish from those of chipping sparrows (as well as swamp sparrows and pine warblers). This male sings during the dawn chorus, often alternating two different songs, and is accompanied by a great horned owl. 6:40 to 6:48 a.m., with sunrise at 7:09 a.m. March 19, 2017. Prefumo Canyon Road, San Luis Obispo, California. (7:38)