Hello! A duck laid 12 eggs up on my roof, and when about 8 or 9 fell off and broke, she abandoned the nest, and when she did so, she left behind three eggs, which we took into our home. One of our eggs is probably about 25 days along, (muscovy) and it is dark inside on the egg, almost like there is a duck inside, but along this journey i haven’t noticed any veins inside. Could this still be a healthy duck? (I have kept it in an incubator since I found it) Thanks so much!