about my diamond doves

[carolyn]

Hi I have a pair of diamond doves, now when they are together in there cage, they are loving eachother well actually the male (romeo) is loving my female (julia) and he"ll be so nice to her wanting to mate and all and pecking her softly, he"ll be like that for a couple of weeks then all of a sudden he'll just peck her bald and it'll be so bad that her skin will be all red and even the orange around her eye will be all red from him pecking at her. I feel so bad cause she is so tiny. and she just trys to run from him.. why does he do this? I dont understand first he can be so nice then become so mean, si what I do is I have an extra cage that I put him in and keep him in there until I feel and see that he will be okay with her again.... can someone tell me why is he doing this?