Mysterious orb appeared on photo caught in California

On December 19, 2015, during a rainy day, an inhabitant of Soquel (California) walked in Santa Cruz Mountains by taking photos. On several, he has discovered some mysterious orbs… What is it?

Witness statement:

I took 3 photos while on a walk in my neighborhood in the Santa Cruz Mountains. It was a beautiful rainy day and I felt compelled to stop and take some photos. I usually can not be bothered to take my cell phone on walks but today was different and I actually took note that it was strange for me to do so but I took it anyways. . At the time I stopped I did not notice any blue orbs in the distance yet they appeared on 2/3 photos I took. I did not move my location while I was taking the pictures but it looks like the orb was moving as it is in different locations in the 2 photos. You can actually see that the orb is half behind a tree branch and you can see the illumination of it peaking behind! I was totally blown away when I saw these after my walk when I got home and loaded them on to my computer. My feeling upon seeing the photos was pure joy and excitement. I was thrilled to have captured these light energy balls on my cell phone.