Ofer, although I can understand your concern I'm not convinced this was pasted onto a new canvas. Nicki did state that she bumped the exposure in PP, so what was likely already a very bright almost white sky was in turn exaggerated after her tweak. The only way I see any noticeable pink around the bird is by bringing the image into PS and darkening the black and/or midtone points in levels quite a bit...and even then it does not look like a cut job.
We should give Nicki the benefit of the doubt that she has disclosed all that there was to disclose - I'm confident she has.