As spring approaches, hummingbirds are making their annual migration north, signaling the changing season with their arrival. Many of these tiny, energetic birds spend the winter months in Central America or Mexico before beginning their journey to breeding grounds in the southern United States as early as February. Those heading farther north continue their migration throughout the spring, following the availability of food sources.
Hummingbirds travel by day, taking advantage of the daylight hours when nectar-rich flowers are more abundant. Their ability to fly low allows them to spot food along the way, ensuring they maintain the energy needed for the long journey. These expert travelers also take advantage of tailwinds, which help them reach their destinations more quickly while conserving energy and body fat.
On an average day, a hummingbird can cover up to 23 miles. However, during longer stretches of migration, such as crossing the Gulf of Mexico, they may fly up to 500 miles without stopping. Their direct flight speed typically ranges between 20-30 miles per hour, though they can triple that speed during their dramatic courtship dives.
To prepare for migration, hummingbirds undergo significant weight gain, storing extra energy to sustain them during their long flights. They typically increase their body weight by 25-40% before embarking on their journey. Once in flight, their metabolic rate soars—heart rates can reach 1,260 beats per minute, while their wings beat between 15 to 80 times per second, making them some of the most efficient long-distance travelers in the animal kingdom.
The first arrivals of the season are usually males, scouting out prime territory before the females follow. While most hummingbirds migrate, some populations remain in specific regions year-round, including along the upper Pacific Coast, the southern Gulf states, and parts of the southeastern Atlantic coast.
For those eagerly awaiting their return, hummingbird migration data suggests that Maryland residents can expect to see these remarkable birds between April 15 and April 30. Their arrival coincides with blooming flowers and an abundance of nectar, marking the official arrival of spring in the region.
