Talked to the guy at the Wild Bird Center store this afternoon. I think I just need to take maeve's advice and tie a nice red ribbon on the pole. The feeder itself is not red, just the little holes to access the sugar water.    I had bought the feeder mixture when I bought the feeder and it has red dye in it, but the container itself is light green glass and the red is dull. Maybe also a few pots of red impatience or begonias around it also will help.

Or, I could just go get a pastic red feeder and see what happens. Would rather use what I already unwisely bought, though.

Found out that 3 of the 5 cats that are the worst offenders belong to the woman next door. A 4th cat, that occasionally seem also belongs to her, but mostly stays inside. The rest of the cats are outdoor cats. Spoke with her at length today. She was out in the yard marking the lines for an electronic invisible fence for her dogs. She is going to go ahead and get collars for the cats also, and see if that will keep them in her yard, and out of mine. Told me to let her know if I continued to have a problem. I think she actually doesn't get it (she is also the one with the dogs tethered 24-7 that bark non-stop at night.) But at least she was cordial about it, and at least verbalized that she considers my concerns legitimate. We'll see.