A growth cost of begging in captive canary chicks.

  title={A growth cost of begging in captive canary chicks.},
  author={Rebecca M Kilner},
  journal={Proceedings of the National Academy of Sciences of the United States of America},
  volume={98 20},
  • Rebecca M Kilner
  • Published 2001 in
    Proceedings of the National Academy of Sciences…
Nestling birds solicit food from adults by using begging displays that appear paradoxically costly and wasteful. Theoretical work suggests that the evolution of such exuberant offspring behavior reflects parent-offspring conflict over the supply of parental investment. Originally, extravagant begging was seen as a means of psychological trickery by which offspring could wheedle additional resources from resistant parents. Subsequently, costly begging came to be viewed as the hallmark of… CONTINUE READING
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