Hi, we have 4 muscovy hens who just began to lay this January. I have had 3 males with them until day before yesterday when I gave two away. Too many males and they were fighting..... My question is this, I have a hen who has started sitting on a nest in the chicken house where all the ducks go to lay. She pulled feathers out to line the nest. Anyway, I haven't actually seen any mating going on. Of course that could happen in the mornings or evening in the barn before I let them outside for the day. I had been seeing them mate in January and February. My question is if they aren't mating right now will the eggs be fertile? I dont' know how long a "mating" is good for. Sounds silly, but I just have no idea, and thought someone here would know for sure. Thanks! I am hoping for a batch of new Muscovy ducklings this year! These ducks will be one year in June by the way.