title: Making songs stick in sparrows' heads.
authors: Karen
authors: K
authors: Marron
mesh_terms: D000818:Animals; D001921:Brain / Q000502:physiology; D061945:Caspase Inhibitors; D008297:Male; D017440:Photoperiod; D012621:Seasons; D046370:Sparrows / Q000502:physiology*; D013739:Testosterone / Q000502:physiology; D014828:Vocalization, Animal / Q000502:physiology*
chemical_list: D061945:Caspase Inhibitors; D013739:Testosterone