Had the same thing with cookie when I first got her 3 years ago she didnt eat anything for over 7 months and then finally wham she took a rat. The next year she would take rats about every other month but didnt really seem interested in them alot. This past year she was doing really wel eating every week on large rats and then I switched her to rabbits and she was taking down rabbits like crazy every week like clockwork and then the past month or two she hasnt wanted a rabbit or a rat. Sometimes condas can drive you crazy