Hummingbirds typically begin their migration south during August and September, with the migration usually completed by the end of October. They travel from their breeding grounds in the northern U.S. and Canada to wintering areas in Central America, Mexico, or southern parts of the U.S. The timing can vary slightly depending on the species, location, and environmental cues such as declining daylight and food availability.

In the spring, hummingbirds start migrating north from their wintering grounds as early as February, with arrivals in southern U.S. regions around late February to March, and continuing northward into May, depending on the area.