According to “Hummingbird ... Map, different species of migratory hummingbirds could have started gracing backyards as early as March in southern states, with northern arrivals by late April ...

The ruby-throated hummingbird is the only species ... using user-reported sightings to map their progress. As of April 14, hummingbirds have made it as far north as New Jersey and Philadelphia.

According to “Hummingbird ... Map, different species of migratory hummingbirds could have started gracing backyards as early as March in southern states, with northern arrivals by late April ...