Variable Food Begging Calls Are Harbingers of Vocal Learning

  title={Variable Food Begging Calls Are Harbingers of Vocal Learning},
  author={Wan-chun Liu and Kazuhiro Wada and Fernando Nottebohm},
  journal={PLoS ONE},
  pages={116 - 140}
Vocal learning has evolved in only a few groups of mammals and birds. The developmental and evolutionary origins of vocal learning remain unclear. The imitation of a memorized sound is a clear example of vocal learning, but is that when vocal learning starts? Here we use an ontogenetic approach to examine how vocal learning emerges in a songbird, the chipping sparrow. The first vocalizations of songbirds, food begging calls, were thought to be innate, and vocal learning emerges later during… CONTINUE READING
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