Some Remarks on Bird's Brain and Behavior under the Constraints of Domestication
Figure 2
Different breeds of chicken with morphological modifications. (a) Cochin, the biggest breed of the world (cock up to 10 pounds) and with food feathering. (b) Araucana with ear tufts and shortened rump. (c) Japanese Bantam with shortened legs. (d) Kraaikoppen cock with decreased, antlers-like comb and small crest.
