Folks often ask & wonder how long they should leave their nectar feeders out & filled. They are concerned, and rightly so, that they will be affecting the migration of Orioles & Hummingbirds by offering food sources.
Not to worry....these birds, along with all the others, know when they need to move on! You will actually be helping them to build up their strength for their very long flights ahead!!
So please....keep your nectar feeders sparkling clean & freshly filled for a while yet. Just when you think they have all moved on, others that spent the summer further north, will be moving through! Might as well enjoy them for as long as you can! (If you're having issues with Yellow Jackets, Wasps, etc. try moving the feeder a few feet, keep the ports clean, place feeders in the shade & make sure the nectar is fresh/clear)