I use the local names, the Ruffed grouse and the common grouse being in question.
"Two Years in Oregon"
Wallis Nash
Here it was a Ruffed grouse that one had jumped for and missed, as the startled bird whirred away into the gloom.
"A Little Brother to the Bear and other Animal Stories"
William Long
The pheasant, or Ruffed grouse, are natives of Washington.
"Memoirs of Orange Jacobs"
Orange Jacobs