The Jackdaw and the European Magpie have been found to have a nidopallium approximately the same relative size as the functionally equivalent neocortex in chimpanzees and humans , and significantly larger than is found in the gibbon .
The Jackdaw and the European Magpie have been found to have a nidopallium about the same relative size as the equivalent neocortex in chimpanzees , and significantly larger than is found in the gibbon .