CaramelKittey
Crowing
They definitely mated in that case. I would try candling them. It sounds like these eggs are not fertile however, your male duck did mate with them. Maybe the male duck did not properly mate with them? It may take the male several times to properly male with the females. I could understand if one or two of the eggs are duds however, it is highly unlikely that they are all duds. At this point, the eggs are probably not fertile since it has been 40 days. How many eggs are there?Yes with both of them. They were in the pool and he was holding them under.