I was flying 300 metres high taking photos of cottage country in Ontario Canada. On the way down at about 75 metres high I saw a bird fly over me and turn around. When it turned around I knew it was a hawk and he was aiming for my P3P. I felt helpless as I watched the hawk fly straight at my bird and hit it enough for my P3P to tumble a few times because the prop was obstructed. At that point I wrote the P3P off, I thought for sure it was going to keep tumbling into the water. But, luckily it regained balance, I had full control, so I happily landed it safely beside me. I was upset I didn't have my video recording on.