作者
Danielle M Adams
发表日期
2006
出版商
Cornell University
简介
Orange-fronted conures use individually distinctive contact calls (chees) to mediate social interactions. Chees are also given as doublets, known as double chees. During vocal exchanges, individuals imitate each other's contact calls; this imitation provides a mechanism for assessing how birds perceive double chees. Through the use of interactive playback we begin to assess the function of double chees. By using stimuli with varying levels of similarity between the chees within a double chee, we found that conures imitate the second chee of the double chee more than the first chee. This suggests that the more relevant information is contained in the second chee, and the first serves to modify or enhance the signal. Double chees do not improve the overall intensity of an interaction, nor do they improve the overall accuracy of imitation. However, double chees may serve a role in signaling and directing changes during chee exchanges.