Bonemerang should hit flying types and have 100% accuracy. I don't think Bone Club and Bone Rush should hit flying types, they are direct clubbing attacks. Maybe have them hit flying types if they move after a the bird uses a direct attack or something like that.
Edit: it's not like Marowak will soar to the heights of OU if it's sub/sash/sturdy breaking signature move can hit birds.
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