I found momma wood duck dead at the edge of our pond yesterday. No sign of any injury. I checked the nesting box and sure enough there were 11 eggs, but they were cold. There were a bunch of long sticks in the box, I suspect the work of a starling. The only thing I can figure is a long stick got wedged in such a way that it blocked the entrance and she exhausted herself trying to get in. My son said he heard alot of splashing in the water shortly after sunset. We're sick about it!