Thanks for all the great info everyone...ive heard/read about bluebacks from older steelhead fisherman and was interested in what they were exactly...theres a guy i know on the russian who grew up in guerneville and knew bill schaadt when he was a kid, he told me about the bluebacks in our river...the past couple years ive seen many 2-4 lb mostly wild fish caught, however theyre usually in december, before many big winter adults are being hooked rather than spring. He made it sound like the bluebacks were very much a thing of the past on the russian.