What kind of squirrel is this?

[timberhunter]

a blue for sure! lol

[Chukar]

Wrong habitat and shape for Western GreySquirrel. That critter is here on the west side...rare and in oak woodlands only. More easily found on the eastern crest and again ...oak woodlands. Protected. If you post it here shenanigan's will begin.
The rodent in the pics is an Eastern Grey which is not protected and is in a habitat that can hold the species. Totally shootable.
Most Eastern Greys are located in areas where firearms are prohibited as they can live and breed close to humans and zoning and city limits prohibit firearms from being released for purposes of hunting so that's a problem. 
Opposite is true for our Western variety as it occurs in more rural areas where shooting is more available.
Good news for bushy tailed rodent enthusiasts...Fox squirrels are expanding ranges in Eastern Wa. Potholes has em and so does areas around Walla Walla and Yakima. These grow bigger and while prefer human stylled development they can make a go in regular old woods. They are not protected. Like the Eastern Grey the Fox is introduced and a non native. 
Squirrel lessons now concludes for this evening.

[Axle]

Those are 100% eastern grays. I have seen and shot hundreds of them in my life (here and other states).
I've only seen 2 western grays here in western WA and they are much larger. I'm sure the western is more common in other areas but here around Issaquah, it is mostly easterns.
A live trap will work very well too.

[C-Money]

Eastern Fox Squirrel ...My favorite squirrel hunt ..they get big !

One of the best times in life is October in the PA hard woods gathering a mess of Fox Squirrels. Where I lived, Fox squirrels were the most abundant, and they did get big feeding on all the corn fields, and nut trees. My Mama use to bake the meat and then pull it off the bone and make a stew. She did this to remove any shot. Same treatment for all the big bunnys.

[pianoman9701]

Eastern in the first few pics. Those are elk in the last few. Not squirrels at all! 

[wt]

Eastern Grey foe sure, the brown and red accents are the characteristic that define them, invasive species. Happy gathering.

[Ripper]

We used to shoot a lot big eastern fox squirrels in Indiana. They are good to eat. I didn't know they were in Wa, I hadn't seen one.

[BOWHUNTER45]

My best times hunting as a kid was hunting squirrels ....I need to go back to Pa soon and hunt some ...My bro tells me that no one even hunts them anymore and the last time I went back deer hunting I seen hundreds but never bagged any up ...Yeah being in the Eastern Woods in October is hard to beat ...the leaves are a foot deep and you can hear everything coming that is roaming the forest floor ...Man I miss those days !!!  I have killed a couple Fox Squirrels that were big as a cat    and that is the truth  One of the best ways to learn how to run a .22 ...popping squirrels in the head at 30 to 50 yrds... Nothen was safe when I was a kid 

[Ripper]

I hear ya BH45. My fiancee is from Pa, over on the East side, I forget the name of the town, right next to Md. I plan on going back there sometime to deer hunt. I will have to pop a few squirrels while there.

[yakimarcher]

I used to shoot the living crap out of those things in my back yard when i was a kid

[steen]

We've got black ones a silver ones that showed up here in the last ten years.  I understand they are not native and came from Stanely Park in BC.  Not sure if that is one of the same.  Not sure if it is true but it wouldn't surprise me.

[paytonma]

thats hands down an eastern gray. got a atleast 20 that roam my backyard here half gray half black i say shoot 'em thats what i do 

[turkeyfeather]

They run up and down my fence taunting my dog all day long. I think it's an eastern as well.

[Smossy]

Yeah Id say "Western" Grey squirrel also.