Okay, my tribe of hummers have increased quite a bit. The other day I was watching through the window when a bunch of hummers flew up, then more came up also! They were competing for the ports on the most popular feeder, with four feeding, then another four. And a few more on the other feeder.
They didn't seem to be at odds, none chased the others, they were cooperating (I think)! My camera needs some repair, but I tried to get photos. Their cooperative spirits didn't extend to my efforts, that was obvious. I love it when the pic doesn't seem to show any wing movement, as if the hummer is suspended in the air like the 2nd one.