Hi Joyce and thanks for your picture and question about your poor cedar tree. From your picture, it looks like it is too late to do anything but let it die and become a wildlife tree. There are many cedar trees that don't seem to be able to cope with our changing climate, for whatever reason. You will notice them all throughout Oregon and it's very sad.

If it is not a fire hazard, the woodpeckers and other birds may find the tree useful, but I wouldn't bother calling an arborist unless you want someone else to take down the tree. It looks like you have other healthy trees behind it, so at least you still have some shade!

Hi Joyce- I guess I need to clarify my response too. I think it is already dead, or at least past hope of revival. If you want to have a certified arborist come look at it, you can find one at the following website:
https://www.treesaregood.org/