shopped...? doubt it.
i doubt that the image was photoshopped in the way you are suggesting. the photographer was probably using a long lens (at least 300mm, probably a 400 or 600) to avoid disturbing whatever was going on in the nest. as a result you have a compression effect and the background will be blurred if a large (say f2.8 or f4) aperature is used - which i am guessing it was in order to keep shutter speed high and freeze the action.
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