At the Baiting Hollow Hummingbird Sanctuary (lihummer.org) the resident adult male ruby-throated hummingbird's favorite perch is at the very top of a very tall dead pine tree - too far for a ground-based camera to get good footage. So I decided to fly the camera to the bird - using my DJI Spark! Numerous cautious tests showed that he doesn't attack the drone - but he flies off if it gets too close, as shown in this video: . The best ground-based footage I can get (using a Canon Vixia HF G30 with 1.5 teleconverter, 30 x zoom) is here: