Hummingbirds do not migrate as a group, but individually. The males, the first to leave, migrate a couple of weeks earlier than the females. They may, in fact, already be gone from this area since I haven't seen any males lately. The females leave next, making their way to the Gulf of Mexico where they make a non-stop nocturnal flight after recuperating and bulking up. The young of the year do not leave with the females, but travel the same routes later on their own, making their trip to the ancestral grounds without ever having seen them before. The migration routes are not learned and science still does not know what guidance system they use to make their incredible journey.
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