title: The influence of some experimental and genetic factors, including hormones, on the visible courtship behavior of budgerigars. (Melopsittacus).
mesh_terms: D000818:Animals; D001307:Auditory Perception; D001717:Birds; D002369:Castration; D004958:Estradiol / Q000097:blood / Q000494:pharmacology*; D005260:Female; D005824:Genetics, Behavioral; D008297:Male; D009425:Nesting Behavior / Q000187:drug effects; D010919:Placebos; D011374:Progesterone / Q000097:blood / Q000494:pharmacology*; D012726:Sexual Behavior, Animal / Q000187:drug effects*; D012934:Social Isolation; D013739:Testosterone / Q000097:blood / Q000494:pharmacology*; D014796:Visual Perception
chemical_list: D010919:Placebos; D013739:Testosterone; D011374:Progesterone; D004958:Estradiol