This is totally anecdotal but my observation is that as the wild turkey population has increased the grouse population has decreased
I've heard that the turkey eat the eggs or chicks in the grouse nets but that could just be fudd lore
Lotsa fool hens ( Franklin;s ) round here ..
Here on the island. The 6 that run around on my deck eating the grapes but none in the bush .Will be heading to our camp west of Sudbury in two weeks. Hope to see more this year than in previous years.