This state's classification carries no date range for the species.
WA's only resident ptarmigan species (alpine North Cascades).The pamphlet lists 'Ptarmigan' as closed statewide without naming a subspecies, but white-tailed is the only ptarmigan present in WA.
Closed statewide (Cascades, high-elevation). A citizen-science volunteer monitoring program run in partnership with The Mountaineers is confirmed active, but no WDFW-published recurring annual population report was found -- active monitoring, no dated report, same pattern as WA's sage-grouse/sharp-tailed grouse rows. Climate-driven alpine-habitat loss is the stated primary long-term concern.