Beans,
Your home state was where the alarm began sounding about WNV in Ruffed Grouse. In the studies I have read, WNV has been found in Pennsylvania Ruffed Grouse for years.

Galliformes are not as closely related in this country as Corvids are. There may be few conclusions to draw in a comparison of infection and mortality rate between the two.
Good idea, but, perhaps not good science.

Best,
Ted