I noticed earlier that the featherheads in the Front Yard have finally noticed the feeder itself. ("Dude! You know that thing waving over the seeds that appear on the ground? There's FOOD in it!") The birds in the back keep fluttering back & forth from feeder to bush to ground as long as you don't breathe too hard or something else disturbing, but the ones in front flap off in a panic when you come in sight. But over time they may calm down a bit.
In any case, it gives the cat something to watch.