maybe just put out a few peanuts. i have Grackles to deal with here, also like to take over. when they do, i take down the peanut feeder for awhile. they've got the message now and only come a few at a time and they don't hog the feeder.
Starlings too. same result.
birds are very interesting to negotiate with.
@holon42 I know it's a risk . . .