I rescued a Robin 2 years ago. No matter how hard I tired to not interact with it, keep it wild, and introduce it back into the wild the darn thing would follow me around outside (it was living in the pine tree beside out house). If I went to the pool it would roost in the spruce trees around the pool. It would land on the deck when it wanted its midday feeding, it would land on my porch swing to watch me when I was reading. I believe a cat may have got him because he was just too tame. The other robins would not accept him and he was not taught to forage by his parents. he really did not have a chance. I spent tons of money getting mealy worms, hunting down berries from the wild etc. I think, to keep him alive, I probably should have brought him into the house because his existence was was already affected due to being abandoned by his parents and taken care of by humans. The hummingbird in the video is bonded with this human. Not the best of scenarios, but certainly better than being left to die.