now, all these have been produced over the last few days by my ducks. All are over a year old (2 are 1, 1 is 2 and 3 are 3 years old) and experienced layers. I am a bit puzzled as we did have no such weird eggs last year in autumn! None of them are moulting or ill (as far a I know). By the way, the 2nd from the left is the "normal" size...