Im in the same boat im not sure about turkeys hurting nesting or killing chicks etc. But im very sure they like the same type habitat and share it alot. Turkey go thru an area of grouse habitat and you can definitely tell they have been there in a bad way. I have personally seen it move grouse out of areas that was holding birds before they desimated it. I don't know if it caused harm to the grouse or not because most times for reasons unknown to me I can't find the grouse in that area anymore. I think with the limited habitat that grouse have, when a flock of turkeys start working the same area the grouse lose in one way or another.
If they fly together they die together....
There are two types of hunting. ordinary hunting ,and ruffed grouse hunting...... Aldo Leopold
The Dude abides. I don't know about you but I take comfort in that. It's good knowin' he's out there. The Dude. Takin' 'er easy for all us sinners. Shoosh. I sure hope he makes the finals..... Sam Elliott