Red-shouldered hawk
Chapter 2: Birds and Their Sounds
Subchapter: Birds without a song just call
From page 14 in the book.
Photo by John Van de Graaff
♫36. Three kee-aah calling bursts from a young bird, already sounding very much like an adult. June 4, 2010. Shawnee National Forest, Eddyville, Illinois. (1:27)
♫37. Three calling bursts from an adult. February 5, 2004. Picayune Strand State Forest, Naples, Florida. (1:10)
♫38. Nestling red-shouldered hawks. The younger birds in the nest already have a hint of the adult kee-aah in their voices (e.g., 0:30-0:43, and 1:03-1:17), and the oldest sibling perched outside the nest is very convincing (e.g., at 0:54 and 1:21). June 21, 2014. Belchertown, Massachusetts. (3:41)