growing up in grays harbor, I use to here blueback alot in most of the coastal streams and they were sockeye strays all over the place especially when the quinalts had huge runs. I have never herd of a cutt called a blueback, there back is pretty green for the most part. Johns river use to have a pretty good blueback run in the late 60s to early 70s and then dissapeard I was just a little guy then. Dad and grandpa caught lots of them in the 60s on the east hoquiam. Only thing I caught in that river was bullheads and suckers....