Photographer was accompanied by his girlfriend, but neither saw the object.

Very clear day, lots of wind blowing and very cold

There were no electromagnetic effects, smells, or missing time associated with the taking of the photograph.

Well, I was trying to take a closer picture of the bird you'll see in the picture, and I finaly took it just before the bird flew away. When I got home I checked the picture in my computer and that is when I see this thing in the sky. And to tell you the truth I did not see anything or hear anything at the moment of the picture. I just want to know from an expert if this image is something strange or if it has a simple explanation.

Thank you,

Junior