My formerly 2 female East Indies Ducks are now a couple. I got them as babies about 9 months ago. I have been getting 2 eggs a day, I thought, from them. One is green and one is large and grayish. The two eggs are ALWAYS laid outside in the run, in a small nest dugout in the mulchy composty area. They are always both filthy, and sometimes covered up. I was asuming they were both laying an egg a day. I also thought they were both duck eggs because their shells are so different than the chicken eggs. My dh also swears they taste different. Today, I cleaned and refilled their pool and sat down to watch them splash around. The one with the white chest put her head down very low on the water and stayed still. The other one, almost all black except for one feather, started bobbing his head and then GOT ON TOP OF HER. He was biting her head and doing the butt wiggle. She was getting her head shoved under the water but she was not fighting it at all. Ok. So I get it. No big deal. Cool, now I can hatch ducklings. Questions: 1. Does a duck lay 2 eggs a day? 2. And can they be 2 different colors? 3. Or is a chicken laying an egg with the duck egg? 4. Or are neither of them duck eggs? 5.There's no way one is still a girl taking on the role of the boy, right? Any other helpful tidbits would be greatly appreciated. This is baffling. Also, I had my Silkie sitting on eggs, and one was what I thought was a duck egg. And it didn't hatch. So is it possible that this was the first time for my ducks?