I'm thinking that this Western Tanager, seen today in Bend, Oregon, is a male because of the yellow abdomen and yellow upper wing bar, but obviously it's not in breeding plumage. Does that make it a "hatch-year bird" or a male that has already molted? However, I could not detect any vestige of red about the head and face, and the back seemed too light for a male. So... maybe it's a female that has more than the usual amount of yellow on the abdomen and wing bar. (?) The books I have looked at do not agree with each other.