My duck could not stand up yesterday afternoon so we took her to the vet. She had a very high temperature and was having mini seizures. The vet put her in cold water and used a syringe to take the yoke out of the egg that was stuck. Her temperature became normal and later that night she laid the shell. This happened two weeks ago as well but not as bad, she laid the egg later her self. Could this be happening because she built a nest outside of where she sleeps at night and was trying to wait till we let her out in the morning to lay the egg in the nest? She is my pet duck and I'm really worried of this happening again. It costs $50 to take her to the vet and I can't afford to take her if this happens often. What do I do? What are the chances of this happening again?