My RIR hen is 21 weeks old. She is not laying yet. The past two weeks she has become aggresive.. I have tried to hand feed her and pick her up but to no avail. She bit me twice today! I have tried avoiding her but she chases me. I have tried chasing HER but she ran away and bit me later. I picked her up and she was really upset. I really want her eggs but I kinda can't stand her. Advise please.