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Parrots and Corvids frequently astonish researchers investigating animal intelligence, in particular when it comes to solving technical problems. The New Caledonian crow (Corvus monduloides), for example, manufactures and uses elongated objects such as sticks or pieces of Pandanus leaves as tools to probe for grubs in tree bark and dead wood. The kea (Nestor notabilis), a mountain parrot which is unknown to employ tools in the wild, can accomplish the use of compact objects tools to knock a food reward out of place.
It took research to realize this??