I have read before about aggression in green and spalding peacocks towards people and other birds too, i haven't dealt with aggressive peacock before, but i have two friends who have two aggressive spalding peacocks. The first peacock is high percentage white spalding peacock, this peacock will attack any colored peahen, whether its a green, spalding or india blue hen. He is only okay with white or silver pied hens, he already killed a spalding hen before. Second peacock is high percentage spalding peacock, this peacock will attack any hen with green blood, and he also killed a spalding peahen before, he is okay with any india blue hens colors. Both peacocks will attack these hens during breeding season, so i was hoping to help them in any way, any help will be appreciated.