Many of her eggs were taken by a predator but most of them never formed and eventually broke. I live in Florida and wonder if the current weather pattern of extreme heat or lower humidity caused them not to form properly.
I have a similar issue. I have a wild Muscovy duck and her eggs are gone but she is staying on the empty nest. I'm hopeful that she will soon leave but she is persistent. I don't want to scare her off as she has always come to our yard for food and she's laid eggs previously with success.