I have a pair of mallards and 3 campbells(2 hens and a drake.) They live on a half acre pond on my farm. The ducks are all last year's ducks. They have plenty to eat(corn, catfish food, and a seperate box of oyster shells.) I have been looking forward to trying my hand at incubating for the first time, but can not find an egg. I have searched up and down the bank and all over in the surrounding areas but still no eggs. Is it possible they aren't laying? Any suggestions?