This state's classification carries no date range for the species.
American woodcock's range is eastern/central U.S.wet woodlands and does not extend into Nevada's Great Basin/Mojave terrain. Absent entirely from CR 26-10, NDOW's comprehensive 'webless migratory game bird' regulation (which covers dove, crow, snipe, coots, gallinules, etc.) -- no season, no closed-season note, no mention at all. Confirmed via targeted web search as well.