1. Effect of testosterone on the behaviour of the domestic chick;Andrew;J. Comp. Physiol. Psychol.,1963
2. Precocious adult behaviour in the young chick;Andrew;Anim. Behav.,1966
3. The effect of testosterone on avian vocalizations;Andrew,1969
4. Increased persistence of attention produced by testosterone, and its implications for the study of sexual behaviour;Andrew,1976
5. An evaluation of the conflict hypothesis as an explanatory principle for the evolution of displays;Baerends,1975