it's a toss-up some will some won't When a snake got one of my ducklings and I had to bring it in for the night just to make sure it was okay I took it out the next day and mama called it right to her so try. Put the duckling down close and watch it might just be fine. I don't think the duckling will do any damage to the eggs with shells but this one could be injured since it's so vulnerable right now. Nick a vein and bleed out.