Precocious adult behaviour in the young chick.
D000374:Aggression; D000818:Animals; D001522:Behavior, Animal; D004435:Eating; D005260:Female; D005502:Food; D006801:Humans; D007173:Imprinting, Psychological; D008297:Male; D011200:Poultry; D012725:Sexual Behavior / Q000187:drug effects; D013739:Testosterone / Q000494:pharmacology
D013739:Testosterone