for about the past week, I've been getting a mystery egg in the duck house, where the geese are laying when you look at it, it has a slight blue tint to it, it's the same length as a pekin egg, but slightly fatter, though in the pics I took it looks white. of my 7 girls I KNOW are laying, I know all thier eggs, at first I thought the runners, but they lay TINY cute little eggs the only other girl I've got is Sage, my blue swed. but she is small, about the same size as my mallard hens. i don't think she could pass something this big if the geese wern't laying in the house i'd almost be half tempted to leave them and see if anyone sets any thoughts? heres the mystery egg compared to my hand and here, Maudes egg on the left, the other on the right see the difference??