Formation of leap orders in pairs of male domestic chickens

  title={Formation of leap orders in pairs of male domestic chickens},
  author={D. W. Rajecki},
  journal={Aggressive Behavior},
  • D. W. Rajecki
  • Published 1 January 1988
  • Psychology
  • Aggressive Behavior
There is disagreement concerning the role or importance of social leaping, compared with pecks and threats, in the dominance relations of fowl. As an approach to this issue, the current paper reports two experiments that used aggression-inducing isolation-rearing conditions of either 8 days or 8 weeks. In 5-min tests in pairs after isolation it was found that leaping was the key aggressive response in conflicts between 14- to 15-week-old roosters. Leaps were more frequent overall and occurred… 
Aggressive behavior in the genus Gallus sp
The utilization of fighting birds as experimental material in the study of mechanisms that have influence on the manifestation of aggressiveness in the genus Gallus might comparatively help to elucidate important biological aspects of such behavior.


Components of aggression in chickens and conceptualizations of aggression in general.
A refined analysis of the peck order in chickens was offered as a test of the notion that for this species, different responses such as leaping and various types of pecking need not be
Heart rate, aggression, and dominance in the domestic chicken.