Dave, it would be completely unfair to criticise any of the techniques demonstrated here, mainly because we have all started with a small jpeg image, and have I suspect all tried a relatively quick fix to illustrate the workflow. I would suggest however that you look at an enlarged view of each technique and note that all of those involving a selection still leave a slight halo around the bird. On a higher resolution image and with the skill and patience I know our colleagues possess this can be eliminated, but just for comparison look at the image edited in LR with the adjustment brush and auto mask. Even at this resolution, and with a quick fix, any haloing is difficult to detect, if present at all. It really is a very useful tool if you are not into layers etc. in PS.