Orioles seed stealing...

We found out today what happened to our 15+ hills of winter squash that have not come up yet. I had just finished watering the hills 5 minutes earlier and a female Oriole jumped right up onto one of the hills and started to dig in the mud that was there now. I thought they must be using the mud for a nest until I saw her pull a pumpkin seed from the hill and fly off with it! Ugh... Well at least we know now, and will replant all the hills a little deeper and maybe with milk jugs over the plants until they've germinated and are up.