I had a near collision with a duck this spring. I was already landing and the speed was already very low. As the drone was about 10 meters away from me a duck suddenly came from the back and right of the drone. It would nearly collide with the drone. It happened really fast. It immediately reduced speed with its wings like it would land on a water and then it flew away over my drone. Really had no idea what was with that duck. It was like flying blind.
Then when I was flying in Venice, Italy I had some close encounters with seagulls. But they didn't attack. I guess they were just curious. But it's quite frightening when you see on your iPad that something just flew very close in front of your drone.
I think it was this June that me and a friend of mine were testing some new features of the drone. I gave the controller to my friend and was just commanding him what to do. Then I noticed two huge birds circling far away from us. I had no idea what they were. They weren't eagles I guess but they were something similar. So I asked the friend with controller to fly closer to those birds. But as soon as we approached the birds moved away.