I am very new to ducks and chickens. I have 2 Road Island Red hens and 1 female Runner Duck and 1 Piken Duck male (I believe he is male. He has a very small curl on one feather on his tail and I have seen him mount my runner in the pool multiple times.) I get 2 chicken eggs most every day. I cant figure out if they are from 1 chicken or one lays and the other gets up in the nest and lays hers on the other. One eggs is large and the other is small. They are brown eggs. I normally get 1 white egg from my runner, but yesterday I went out and she was laying on 3 eggs!! She has NEVER sat on her egg before. Yesterday I went out in the middle of the day and she was in the cop sitting on the eggs. 3 eggs!!!! She has 1 egg that I gathered the day before. Has anyone heard of this? I cant wait to see what I get today.