Clark’s nutcrackers’ (Nucifraga columbiana) ability to discriminate knowledge states of human experimenters during an object-choice task
The present thesis examined whether the corvid, Clark’s nutcracker, is able to discriminate knowledge states between human experimenters based upon gestural cues using an object-choice task. To do so, the knowledge state of two experimenters was manipulated – one experimenter was informed, and the...
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2012
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| Online Access: | http://hdl.handle.net/1993/5323 |