Cockatoos that create and use new tools

Cockatoos that create and use new tools https://i0.wp.com/www.eresviral.com/wp-content/uploads/2018/11/Cacatúas-que-crean-y-utilizan-nuevas-herramientas.jpg?fit=190%2C146&ssl=1

Cockatoos that create and use new tools







It is known, by observing individuals in captivity, that the cockatoo of the species Cacatua goffiniana is able to invent tools and use them in tasks that are important for her, such as obtaining food.



The team of Alice Auersperg, of the University of Veterinary Medicine of Vienna in Austria, investigated two questions: Do these cockatiels adjust the properties of their tools, trying to save their efforts? And, if so, to what extent can you adjust the dimensions of the tool for the task?



Auersperg and his colleagues gave six adult cockatiels large sheets of cardboard to cut into strips, to be used as tools to collect food from a prepared platform for the experiment. This platform exhibited food rewards located at variable distances (4 to 16 centimeters), after a small opening that also varied in width (1 to 2 centimeters).



They checked that the cockatoos were able to adjust the length of their cardboard strip tools to compensate for the distance of the food, making them shorter when the reward was closer than when it was further away. In each case, if the tool of the first attempt was too short, that of the second tended to be noticeably longer. On average, the six birds manufactured significantly longer tools than necessary to achieve the reward in all test conditions. Birds tended to produce increasingly longer tools as the study progressed, perhaps as a strategy to avoid risks.







A cockatoo of the species Cacatua goffiniana uses a cardboard tool to obtain food. (Photo: Goffin Lab, Veterinärmedizinische Universität Wien)



However, only one bird was able to make a tool narrow enough to successfully achieve the food reward when the opening was the narrowest.



The authors of the study theorize that the cutting technique used by birds to cut cardboard limits the narrowness of the resulting strips. They suggest that in future research on this issue, cockatoos should be given less restrictive materials in order to assess whether they are cognitively able to adjust the width of the tool in this situation.



The results of the study have been made public through the academic journal PLoS ONE. The work reference is as follows: Auersperg AMI, Köck C, O'Hara M, Huber L (2018) Tool making cockatoos adjust the lengths but not the widths of their tools to function. PLoS ONE 13 (11): e0205429.



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