Our hummers must leave about a month earlier than yours. Pretty consistently ever year it’s about Sept 5h/6th that the last hummingbird comes through. By that time flowers/wildflowers are pretty much gone too. I always leave the feeders up another week just in case.
Lo and behold, last year we had one straggler that must have been late in her migration? She fed and sat on the feeder almost all morning. Then early afternoon she buzzed off on her merry way. Butterflies and most of the birds are gone too. The Juncos have arrived, which are our winter birds up here. So it’s just around the corner!
Enjoy the fluttery critters! ☺️