Western gray squirrels will now be listed as endangered in Washington. The state Fish and Wildlife Commission’s decision Friday comes after a periodic status review of the large tree squirrels. It’s hard to know exactly how many Western gray squirrels are in Washington — but the state’s Department of Fish and Wildlife said it is safe to say there aren’t many, somewhere between 400 and 1,400, in total. …Most of the squirrels are isolated in Okanogan and Klickitat counties and in the South Sound area. …The squirrels were listed as threatened in the state in 1993. Recovery efforts since then haven’t worked out as hoped. The squirrels have lost about 20% of their important habitat to things like development and wildfires. …Cotten said where there is good habitat, the squirrels are doing well — like a reintroduced population at Joint Base Lewis-McCord, south of Tacoma.