My pekin duck (Emma) hasn't looked right for the last few weeks. I don't know what is wrong with her. I checked her crop and it is fine. She is eating and drinking just fine but she looks fluffy all the time and when the wind blows her feathers stand out all fluffy like she just came out of a dryer. I have looked for her oil glands and if what I'm seeing is correct then it isn't blocked. She walks kinda scrunched-up. The draked won't leave her alone. Emma has been laying everyday until last week and then she started laying every other day. Two days ago her egg was broke in the nest and yesterday it was on the ground broke. We thought maybe Jake (the drake) was breaking them so we seprated them. This morning there was no egg in her nest but tonight when we went to lock her up for the night there was and egg on the ground broke. My husband went to remove it and discovered that there was another hardshell egg inside of it. I have never seen this before and was really suprised. It is a large egg to. There was a hardshell with the white but no yoke (unless the chickens ate it) and then another regular egg. I took it in and washed it and it doesn't have any cracks. I wonder what is going on and will it be ok to eat the egg? What could be wrong with my Emma? I love her dearly.