Orioles are not that shy, DOG.
Ours are more inclined to chase the other birds than to be chased, but mostly they just live and let live. You can probably feed both your seed customers and your orioles without too much conflict.
I suspect the orioles aren't quite back yet--we're a couple weeks away from our first arrivals here...if they stay on schedule.
But meanwhile, lookee who showed up again this afternoon and was claiming the yard as his territory:
I'm so excited! Isn't he handsome?