Could not tell from your post how large the property is. I'd say that if you are hunting a few hundred acres or more, it is likely that the turkey will simply relocate to an area not being disturbed .. and keep moving about as the cutters make progress. The issue that I think is likely the most negative is the effect upon next years crop of birds .... nesting. Once the hens nest, thats it as far as moving. Cutting equipment move in on a nesting area and it would be a miracle if the hen did not abandon her nest, or if the nest was not destroyed. On the up side, select cutting can dramatically improve turkey habitat and next few years should be very good.