Turkeys are voracious omnivorous. They roam the forest floor in flocks digging up and overturning vegetation as they go. They will eat anything that they can fit in their mouths.

I highly doubt they are specifically looking for grouse eggs or young, but if they come across them they undoubtedly will be eaten. Just like any other organism they happen across.

To introduce turkey where they were not historically found, is to simply introduce yet another predator into the live cycles of the animals already inhabiting that environment.

It will be left to regional communities to determine if that is a good idea.

“I left long before daylight, alone but not lonely.”~Gordon Macquarrie