I have a pair of 5 week old Indian runners that I've just put out in the fenced garden with predator proof housing. While working in the garden I gathered many Japanese beetles which the ducklings gobble up if I dump some in their water. I have noticed what appears to be lots of little white eggs in their poop. I'm guessing they gobbled some JB females full of eggs ready to lay. My question(s) are.... are the beetles perhaps too much for the young ducks digestive system? If these are JB eggs, am I just creating more of them by not disposing of them or are they rendered inert after passing through the ducks digestive tract and/or laying out in the open? Thanks for any info..... Gary