I have hummers at my feeders, also orioles. Don't mind sharing nectar with them but they are big and they don't hover. In consequence they try to cling to the feeder, sending it swinging, and hummer juice spraying everywhere. I just refill often, and move often to outwit the ants that also love to feed on this stuff. The orioles are just passing thru...who am I to refuse them a little sugar water?