One of my white peas is out of a spalding pair and i think i may have an agression problem with him when he gets older, he is not a pet but all my peas eat out of my hand but he pecks and pecks my fingers tail raised and hisssing only pea i ever heard do that to me, i also have a female spalding and she is not that way so i think it just depends on the bird, like other animals you just don't know till you have them.