I am getting ready to set some Call duck eggs in my incubator. I have never used my incubator before. For that matter, I have never even hatched any eggs yet. I know, I picked a doozy to start with; I got a really good deal on 18 call duck eggs from a 4H winner. Anyway, the man I bought them from said I need to clean the eggs before putting them in the bator. My question is: How should I clean the poo off of them? I know I can't wash them, so what should I do? Is it necessary to clean them first? I would like to set them today so any help would be appreciated. Thanks.