Ruffed grouse

Higher confidence: per WGFD's own Wyoming Wildlife magazine feature ("Looking Sharp"), lek-based survey methods used for sage-grouse and sharp-tailed grouse "wouldn't work for ruffed or dusky grouse that live in areas where survey routes are impractical and they don't display at leks" -- ruffed grouse males display and call individually rather than gathering at leks, so no equivalent monitoring instrument exists. No WGFD ruffed grouse population survey of any kind was found.