Carolina wren
Chapter 2: Birds and Their Sounds
Subchapter: Female song and duets
From page 17 in the book.
Photo by Brian E. Small
Photo by Wil Hershberger
♫49. In this daytime example, the female offers her duetting chatter three times in response to the male's songs. October 16, 2003. Audubon Corkscrew Swamp Sanctuary, Naples, Florida. (0:26)
♫50. Female duets with male upon awaking, the intensity waning over eight male songs. She is in the focus of the parabolic microphone, about five yards away, with him more distant. October 16, 2003. Audubon Corkscrew Swamp Sanctuary, Naples, Florida. (1:41)