I just set 30 wild mallard eggs in a Brinsea Polyhatch bator yesterday. The temp is holding good at 99.5 but I can't get the humidity past 55. From what I've read it should be around 60 during the inital setting. I have both water reservors full and a pan of water on the egg tray and it still won't go any higher. I think its due to the fact that there is real low humidity in the air here. The bator has 4 vent holes in the top. I have all four of them pluged and still can only maintain about 54 humidity. I'm not sure if it is better to drop the humidity even lower to open one of the holes for ventilation or to leave them all shut and maintain as much humidity as I can. I will probably have a real problem during hatch time if I can't get the humidity up. This is my first experience with duck eggs so any help will be much appreciated. Thanks Ya'll