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Type of publication: Journal Article
Type of document: Full Paper

Year: 2011

Authors: Auersperg, AM; Huber, L; Gajdon, GK

Title: Navigating a tool end in a specific direction: stick-tool use in kea (Nestor notabilis).

Source: Biol Lett. 2011; 7(6):825-828



Authors Vetmeduni Vienna:

Auersperg Alice Isabel Marie
Gajdon Gyula
Huber Ludwig


Abstract:
This study depicts how captive kea, New Zealand parrots, which are not known to use tools in the wild, employ a stick-tool to retrieve a food reward after receiving demonstration trials. Four out of six animals succeeded in doing so despite physical (beak curvature) and ecological (no stick-like materials used during nest construction) constraints when handling elongated objects. We further demonstrate that the same animals can thereafter direct the functional end of a stick-tool into a desired direction, aiming at a positive option while avoiding a negative one.

Keywords Pubmed: Animals
Food
Male
Parrots/physiology*
Problem Solving
Reward
Tool Use Behavior*


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