Timing the Return of Hummingbirds: Seasonal Trends in Wisconsin's Backyard Birdwatching
Spring Arrival: Hummingbirds generally return to Wisconsin in late April to early May. The exact timing depends on various factors, including weather conditions, food availability, and temperature.
Weather Influence: A warm spring with early blooms can prompt the early arrival of hummingbirds. In contrast, a delayed spring with colder temperatures may cause them to arrive later.
Peak Migration Period: The peak of migration occurs in mid-May, with many hummingbirds reaching Wisconsin around this time.
Feeding Habits: As tiny birds with high metabolism, hummingbirds rely on nectar from flowers and sugar water from feeders to fuel their long migration.
Flowering Plants: Native plants like columbine, bee balm, and trumpet vine are excellent for attracting hummingbirds. These flowers typically bloom around the same time that hummingbirds return.
Timing Adjustments: While the majority of hummingbirds arrive in early May, some individuals may return as early as late April or as late as June.
Cold Fronts: A sudden cold snap can delay their arrival or even cause them to move back temporarily to warmer areas until temperatures stabilize.
Tracking Migration: Many birdwatchers track the timing of hummingbird arrivals through online forums and local reports, helping to build a more accurate picture of seasonal trends.