My Cayuga's (a hen and two drakes) and Magpies (two hens) have laid duck eggs all Spring and Summer. The Cayuga hen is now sitting on a nest, determined to hatch them and she's also got a few BO chicken and RIR chicken eggs mixed in there because I've got them sharing the pen/coop for the summer. I prefer dark meat of turkey so the plan is to butcher each Fall from the geese and ducks after they raise their young for at least two months of the summer and overwinter 4-6 ducks and geese, each. In the meantime, as they've matured, I've had wonderful and large eggs from both. If I lived in a warmer area, I'd keep more over winter.