Feisty Rufous and American Goldfinches

It seems that when the weather is coldest, our Rufous Hummingbird gets most possessive of her feeders. Today she chased the Orange-crowned Warbler from the hummingbird feeder again. Then, when every goldfinch feeder was filled with goldfinches, and they had overflowed to the seed-sock on the porch next to a hummingbird feeder, Rufie began to attack goldfinches, particularly the one that mistakenly sat on the hummingbird feeder. I didn't get a picture of Rufie, but I'm posting a picture of a goldfinch on the sock, and another picture of a very gold goldfinch.