CORIVD BRAINS: An Introduction

Corvidae is a family of oscine passerine birds that contains the crows, ravens, rooks, jackdaws, jays, magpies, treepies and nutcrackers. Collectively its members are called corvids and there are over 120 species. Corvids contain the largest brain, relative to their body size, of any bird. Based on a brain-to-body ratio, the corvid brain equals that of a chimpanzee, is roughly the same as a dolphin, and is only slightly lower than a human. (werecorvi.com)