Just moved to a rural area and put out a feeder. One of those copper ones from the big box store. For a month there was no activity, so Friday i bought another one, but this one had lots of red on it. Within two days they were swarming all around it.
My wife was so happy, she has had hummers at previous residences so we thought we would try at our new home.
Anyway, to make a long story short i was not a believer that the "red" made any difference but i have been converted.
All red feeders from now on. In fact last night painted the copper one red.
I look forward to learning more about hummers on this forum.