We have those in Lynnwood. They hunt birds and sometimes outdoor pets. I heard someone in the Northgate area got their Geo Metro eaten by one. I guess they get pretty huge here in our tall trees and all.
I tried keeping one as a pet, but it's hard to get feeder birds. They are expensive, and I couldn't get it to take live or dead mice, or anykind of seafood. Too bad too, it kept the cat out of the house.