Spirit in the Tree

What you are seeing in the first photo appears to be purple in color. Note that if this was due to sunlight it would have extended elsewhere. It does not. The area of purple is of a figure and not a squirrel or bat. When I took this photo there was nothing unusual about this tree. Yet in the digital photo this anomaly shows up. In night vision mode, note that the living fauna is generally white in color, sunlight is neutral and the dead areas are black or some in purple on the negative. But this turns green in the negative. What is it? Why does it show up in this photo and if the sun is responsible why does only the object appear green. Is it a spirit in the trees, watching, waiting, contemplating what to do when the sun goes down? You decide.