“Insightful” string-pulling in Grey parrots ( Psittacus erithacus ) is affected by vocal competence

Author: Pepperberg Irene  

Publisher: Springer Publishing Company

ISSN: 1435-9448

Source: Animal Cognition, Vol.7, Iss.4, 2004-10, pp. : 263-266

Disclaimer: Any content in publications that violate the sovereignty, the constitution or regulations of the PRC is not accepted or approved by CNPIEC.

Previous Menu Next

Abstract