Thanks, John. It's just a matter of using adjustment layers and masks. As you can see here, I adjusted levels to suit the rhino and background, then masked out the bird (so it wasn't over-brightened). Same with selective color. For S/H, I applied that only to the rhino, and to nothing else. (I converted that duplicate layer to a smart object first, because that allows you to re-open the S/H filter and make further adjustments if needed.)
You probably know this, but when adjusting levels, hold the Alt key while pulling in the highlights slider, and you'll see exactly when it begins to clip highlights. I let it clip the bird because I was going to mask that out anyway. I looked for clipping on the rhino or background, and stopped at that point.
