I've had beaucoup Starlings though, and they can be just as messy, mean, and selfish. I have a plethora of Downy Woodpeckers at my suet feeders, and Starlings would chase and kill them because they saw them as competition for the suet. You can always tell if another bird died from a Starling attack: They always peck out the other bird's eyes. The Starlings love to eat all the suet (and I mean ALL) for their babies, because it's all fat and mashed up peanuts. That makes for big, strong babies. 
Yippee!
I had a Red Bellied Woodpecker work for over a week, carving out a nest in a dead branch of an old tree. In came the Starlings, harassed the Woodpecker until he flew to another tree, then took over the nest. Starlings are the shittiest birds (literally and figuratively) on the planet. Sounds like the Siskins would give them a run for their money though. Anyway, the Starlings fouled the nest with as much crap as possible, then abandoned it the same day. They didn't really want the nest, they just didn't want the Woodpecker to have it. 
Blue Jays can be a problem as well, but at least they hang around during the winter and add a bit of color to the drab winter scenery.
Yes, the natural world is full of assholes too. Amazing, isn't it? 
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