While April can remain cold in the evening in many areas, May typically signals the true arrival of spring, with longer days and warmer weather drawing hummingbirds northward. Typically seen flitting from flower to flower, returning hummingbirds will be a welcome sign for gardeners or birdwatchers this month.
Rufous hummingbirds that have spent the winter in Mexico, for example, are now arriving in California, Oregon and Washington, with some sightings even reported as far north as Alaska and British Columbia. Meanwhile, the easily recognizable ruby-throated hummingbirds will also now be arriving throughout the Midwest and Northeast, making their way back to their breeding grounds as the season advances.
