On Mothers Day an army of ants launched a full-scale invasion of our hummingbird feeder (shown here in happier days). What impresses me is they have to scale a 6-foot pole, crawl down a small wire, get the food, then carry it back on what must be a 10-mile trek in ant-world. They are training them well in ant-boot-camp.
I thought that the hummingbirds might actually like it, because they'd get free, unlimited ants with each trip to the feeder. It's like you go to the drive-through for a large Pepsi, and they also give you a free bag of fries. Not so. It turns out that hummingbirds not only do not like ants (at least not these ants) but they're actually staying away.
We washed off the pole and the feeder, but they came right back. I saw an "ant moat" at the hardware store, but it was 6 bucks, so I didn't buy it. Still working on alternatives. Let me know if you've solved this problem! Thanks!