This state's classification carries no date range for the species.
Official 2026-27 DNR season chart lists Ruffed Grouse hunting dates literally as 'Suspended' under the Woodland Small Game category — statewide closure, no bag limit applicable. No explanation given on the chart itself; population decline is the commonly cited reason in prior-year DNR communications but that specific rationale was not re-verified in this pass.
Lower-confidence closure, flagged explicitly (mirrors the CA white-tailed ptarmigan and IL ruffed grouse judgment calls from prior Tier B passes): season has been suspended statewide since 2015, and the species was added to Indiana's State Endangered list in Dec 2020 (extremely low populations in ~12 counties). IDNR's own ruffed grouse page (read directly 2026-08-19) confirms historic roadside drumming counts began in 1953 but states nothing about whether monitoring continues today; a fresh search pass found no current IDNR survey, drumming-count data, or monitoring program of any kind. Not a documented confirmed-absence statement from IDNR itself, but the total absence of any current-program evidence across every source checked is the closest fit of the three buckets; worth a second look with different search terms or a direct IDNR wildlife-program inquiry.