Last year I had my broody Cochin Morgan sit on a dozen eggs and none hatched. This summer, I have had my SS Linda, who went broody for the third time by the time she was nine months old, sit on five eggs produced by my Buff Brahma Joycie, and the roo Penrod. It's now day 22 and she's still sitting on five un-hatched eggs. I'm at a loss. These were very fresh, fertilized eggs, and Linda has been a faithful and focused egg sitter, so why wouldn't they hatch?