Abstract
THE first scientific recognition of dominance relations or social organization in flocks of Gallus domesticus was made by Schjelderup-Ebbe in 1922. This observation has since been confirmed by Sanctuary (1932), Masure and Allee (1934), Murchison (1935), Skard (1937) and many others. Wood-Gush (1955) has published a review of literature on the behavior of the domestic chicken.Sanctuary (1932) obtained results which indicate that birds which were subordinates in flocks were delayed in reaching sexual maturity. Masure and Allee (1934) and Collias (1943) had shown that not only did high ranking birds have precedence to food but also displaying greater freedom of the pen. Guhl and Allee (1944) observed that individuals in socially unstable alternating flocks laid fewer eggs than they did when isolated or than their fellows did as members of socially organized control flocks. These same individuals lost weight and also consumed less food. The alternating hens in the…
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