My broody has been sitting on guinea eggs for 27 days. There's no sign that I can see of anyone hatching. She was a 'store-bought' chicken. Does she maybe have no idea what she's supposed to do and therefore no one is going to hatch? How long do I wait before I remove the eggs? I'm sad that no one has hatched yet as my female guineas are getting picked-off by predators when they set on their nests - I was hopeful for some new babies to replace them.