Nowadays, people look at this photo and assume the background was manipulated in Photoshop, which sadly has now become the generic name for photographic post-processing.
In fact, the strange, painterly look of non-centered items is the result of shooting with a very long lens at a very wide aperture through a mess of plants. The center of the lens had a clear view to the head of the quail, which looks off center here because I cropped the image. The twigs and leaves between the quail and the rest of the lens interrupt light transmission and act like a diffusion filter, and shallow depth of field from the wide aperture blurs the background. Might make a mess of a landscape, but I like the way it works for this portrait.