Common raven
Chapter 5: More about Song Learning
Subchapter: Song (and call) matching
From page 59 in the book.
Photo by Wil Hershberger
♫222. Call matching, example 1. The two ravens match each other from 0:16 to about 0:50, when they both switch to a new call. June 6, 2009. Big Hole National Battlefield, Wisdom, Montana. (2:55)
♫223. Call matching, example 2. May 5, 2016. Portal, Arizona. (0:43)