That´s what I wondered.Maybe an egg broke inside her? I'm so sorry for your loss. At least you were with her when she passed.
MLyd, the older ducklings I sold locally, surprisingly, and someone else said they´d been searching for muscovies and hadn´t found any!! And a guy turned up one day wanting a duck so I sold another! So the older 2 are gone, but I have 5 at the mo, incl these 2 tinies. I´ll def keep 2 of them. And I have another duck just started laying again. I may let her hatch a couple, as I really like her mucky green eggs so I´d like to see if the next generation lays the same colour. Mostly I just let them keep one or two eggs, so I have fewer to find homes for, but I can still enjoy them too.