I have an update to my post about hummingbird feeders.
My spouse who is in absolute charge of our hummingbird feeder, was wandering through Pinterist, and came across some ideas for multiple hummingbird feeders based on hanging feeders from a chandelier that is painted red.
It took her only a couple days to find a chandelier on ebay or somewhere, some cans of red spray paint, and a couple of unused feeders from a closet, to create a new triple feeder. I watched this effort from afar, witholding judgement. After a few weeks with the new setup, I can say that our hummingbird attendance has gone from usually 1 or occasionally 2 birds, to 2 birds almost all day long and 3-4 fighting for dominance at times. I have picture of the device below, but only with 2 birds shot with an 85mm f1.2 lens to blur the ugly background a bit, as I was reluctant to move the feeder and upset our local sugar thieves.
One other point we learned, was to boil the water after you add the sugar - this helps sterilize the sugar water and tends to prolong the time before it clouds by bacterial or fungal growth which does occur in warm weather after a few days - then you get to wash the bottles, boil some water and add the sugar to it, let it cool down and refill the feeders. And enjoy watching the tumult of the very territorial hummingbirds.