Page needed Chase,.; Tovey,.; Spangler-Martin,.; Manfredonia,. Cambridge University Press: Cambridge, England,. . Journal of Behavioral Ecology and Sociobiology. In a laboratory experiment, Clarke and Faulkes (1997) 18 demonstrated that reproductive status in a colony. That is to say, group members who behave submissively when talking to someone who appears to be in control are better liked, and similarly individuals who display dominant behaviours (e.g., taking charge, issuing orders) are more liked when interacting with docile, subservient individuals. The dominant female produces all or almost all of the offspring in the living group, and the dominant male has first access to her during her oestrus period. London: Chapman and Hall, 1987 page needed Samuels,.; Silk,. Among the males is a dominance hierarchy: older birds tend to be the alpha male and first year birds are usually the beta males.