Filmed small black object flying right to left and accidentally captured something fly the other direction at end of video

Was standing out back and a small black object caught my eye. I grabbed my phone and aimed it up towards the object but was hard to see in the sun. I followed the object traveling from right to left in the sky and then while reviewing it later noticed another black object shooting from behind a tree line at an incredible rate of speed going from bottom left to upper right. When I slowed it down and looked frame by frame I could see the second object appear to change shape and in one frame I can clearly see what looks like an oblong shape that has a single wing through it. You can see both objects in the same shot on the zoomed in frame included. No sounds were heard by either object.