Butterflies and Hummingbird Feeders

Curious Ray wanted to know. Do butterflies visit hummingbird feeders? Well. Yes they do Ray. But so far, only red admirals. And only one red admiral that visits the hummingbird feeder has actually learned to stick its tube in the hole. That would be the one on the left in this picture. Seems like though, hummingbird feeders would naturally attract butterflies and more butterflies would be smart enough to hit the hole.