The avian brain is larger in proportion to its body than all other vertebrates except mammals I Fig. 1 3.7l.

The basic division of the brain into lore, hind and midbrain can be identified and the hind and midbrains are simi­lar to those of mammals. The parts of the forebrain dif­fer because the bird needs a different range of senses in order to survive. Within the brain, the control centres for sight (optic lobes) and hearing (cerebellumI are well developed while those for touch, smell Iolfactory bulbs I and taste are small and underdeveloped.

Fig. 13.7 Lateral v∣ew of a bind’s brain. (Rcpnnted from Chntca

Anatomy and Physioiogy for Veterinary Technicians.! Colv∣∣⅛ and JM Bassett p 359. Copynght 2002. with permission fnorn E∣se√∣er Science.)