This is a slightly enlarged version of an image taken by an individual on June 22, 2016 while fishing on the north fork of the Yuba River in California. It was submitted to MUFON and is designated as Case Number 77296. The object was not discovered until after the photos were seen. The witness was taking pictures of the scenery at the time, and had taken three photographs in quick succession. This image appears in only one of them. It was taken in a very secluded area.
The image displays a slight distortion indicative of the fact that the object was moving at a speed so high that it registered more than once on a single frame of video.
This is unquestionably a genuine photo. The fact that the object disappeared in 1/25th of a second suggests that it is not an insect, which would have been visible in all three frames. It is not a bird. We grade it A, probable unknown.