Took a picture of a ufo near a cloud around 3:30 pm unknowingly. Viewed photo later in the evening and saw a circular object with 2 extended landing legs. Object was estimated to be 25000 feet above ground. Took another photo and when I viewed other photos, 2 birds were superimposed in the sky. It was if someone had reviewed my first photo of the ufo and covered up the object in the 2nd photos.