I’ve been following the comments about blue jays with some interest. Around here, the blue jays don’t haunt the feeders very much. The main customers are cardinals and finches and doves and, of course, squirrels. In addition, there are chickadees, titmice and assorted woodpeckers. (We’re talking sunflower seeds exclusively.)  The blue jays hang mostly in the tree tops, and a solitary jay will visit the feeder every now and then. The brown thrashers scratch around in the leaves under the bushes and pretty much ignore everyone and everything else.