We first see them around Memorial Day at our rhododendrons. They entertain us all summer, then begin their migration south just after Labor Day. The males leave first, and about 2 weeks later the females and their babies follow. Most ruby-throated hummingbirds winter in southern Mexico or Central America.
I hang out a hummingbird feeder with artificial nectar made by dissolving 1 Cup Sugar into 4 Cups of water. Boil, then cool before filling the feeder. This year I alternated between 2 feeders so I could clean one while the other was being used. I look forward to their return next year!