OY, I never thought it would come to this, but oy... First, there was Betsy. Betsy is a Khaki Campbell duck who has laid all but a dozen days since she started laying. That's about 285 days now. Recently Sera, Betsy and Mikey's daughter, started laying. Because of flock dynamics we had to separate Betsy and Mikey a short time after Sera started laying. Prior to that I judged the single egg days based on appearance. Betsy's were always perfectly shaped, Sera's were often smaller and kinda pointy on both ends. Sometimes Sera laid her eggs in the nest hole full of straw and chips, but most of the time just any ol' place in the ducks night pen where she felt like placing it. Then she discovered the hummocks of tall grass in the duck yard were pretty nice to hide under to leave eggs. So she started waiting, and complaining if she didn't get out when she wanted, to place her eggs there. Sometimes the eggs still had pointiness, but they were a lot larger than others. Those have turned out to be doubles - those that we have opened. Then... those bigger eggs started looking like normal eggs, nice shape, nice color, but bigger. I have no clue if they are doubles. I tried candling them, but am not sure I am seeing one yolk, let alone two. Enter into the picture Maggie. Maggie is a buff goose who is now nearly 14 weeks old. I figure she is about a month away from starting to lay herself. Sera started at 16 weeks and Betsy started at 20 weeks. Soo... Although I haven't SEEN any sign of a goose searching for a place to lay... Those are LARGE eggs I am finding on some days. I've never found the large ones in the duck's night pen... And someone started using the tire that is full of straw and shavings as an egg depository... Sera was totally put off by it when I made it, even though I stuck it over one of her favorite dirt-hole egg spots. How do I tell if the eggs are doubles and thus larger? I don't want to open a bunch when I don't need them. The two I did use were both pointy on both ends and doubles, but now I wonder that they were not THIS big. Maybe the silly goose has been laying since the first of the month and those are her double eggs? So far I have not had two eggs in one day, a sure way to know if both the duck and goose are both laying... This is so eggsasperating... Here's the line up: Serama Bantam Sera (KC) Betsy (KC) Double? Double? Goose? Betsy (KC) Double ? (real pointy) Double ? Goose ?