Because that is what she is! One of my Favorelles has lost her little mind. She went broody and "mothered" over thirty eggs till I took the rotting heap away from her and put down new straw in the nesting box, causing her mind to snap like a dry stick. Now, wide eyed and molting, she runs hither and yon oblivious to the world. She survived one night outside the coop, I had to chase her back to the coop two nights in a row and then, tonight, I look out at 9:30 to see her balding butt waiting outside the coop! She now lives in the special needs/teenager coop with this Guinea Fowl.