I have ducks and chickens. Somebody lays a blush colored big egg and the duck eggs have striations in the shells. I have just discovered these striations on the duck eggs and the blush eggs don't have them so I am assuming the blush eggs are chicken. I have 3 ducks but one has babies so I don't think she could be laying again yet. The babies are only about 2 weeks old. Tonight when I went out to lock everyone up, I found eggs where I didn't expect to and brought them in, some of them may have been there 2 days. One blush egg and one duck egg have floaties in them, not big enough to be called an embryo and they don't seem to be attached at this point. Do these floaties mean the eggs have been fertilized? Thanks.