My female cockateil pecks at the male and she is also the one who whistles and takes treats from me through the cage bars, the male is usually always quiet when I approach the cage and he goes into the nesting box and sways his head side to side, then the female goes inside too and pecks at him and then he comes out and so does she. When he is close to her she pecks at him or when he tries to approach me and take the treat she pecks at him and she takes the treat and he just goes to the corner of the cage. What do I do?
