Last stimuli presented in the habituation series. The focal subject shows little response to hearing a 23rd vocalisation recorded from Bird A, i.e., the same familiar individual. This was the last stimuli in the habituation phase.
This research was published in the journal Biology Letters in the paper: 'Cooperative bird differentiates between the calls of different individuals, even when vocalizations were from completely unfamiliar individuals' by Paul G. McDonald. The doi link for the article is http://rsbl.royalsocietypublishing.org/lookup/doi/10.1098/rsbl.2011.1118
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VicariousReality7 1 month ago