Did some google-fu and the nasty hummingbird who attacks everyone is a ruby throated hummingbird and the one he is bullying is a green violetear, although it is not as vibrant a green as those pictures. It’s a much earthier green that shows up the way purple shows up on a blackbird when the light hits it a right way. At any rate, there are now 3-4 hummingbirds (haven’t seen the other two close enough to know what they are) coming at once, so what is happening is basically whack-a-mole for the ruby throated. He’ll drive off one, and another one will swoop in and feed. Sometimes when the ruby throated is chasing off another one, the other two will come at the same time and attack each other, so basically no one is feeding, everyone is fighting, and things are fucked up and bullshit and the free nectar is just being wasted.
I think I just described American politics.