This is the last thing a small bird sees when a Wedge-Tailed Eagle decides that you are dinner. The footage was captured by Melbourne Aerial Video who adds:

Do not fly drones near birds of prey, they clearly attack seeing you as a threat or the right sized dinner. This will cost you money and potentially harm to the bird. This one was fine.. the drone needed some attention before it could fly again. If you see a bird of prey while flying. Land. I have added this to my operating procedure.