Near high-speed birdstrike of my Phantom 3 Pro

This clip is from this flight https://youtu.be/g5RARruwOM4 @ 2 minutes, 31 seconds. Note the white object near the center of the screen flying past my right side. This is slowed down 16 times normal speed. This was originally shot in 30fps 1080P. I'm not sure what this object is, it goes by in about 1/2 second in the original video and I did not see it until I viewed the video in post. I presume it is a bird flying in the other direction. As I was flying at 37 mph we would have been closing on each other at about 70mph! I see what looks like a course change in the object at about 19seconds or 3 frames before it leaves the field of view.