Why Is It So Difficult to Attract a Variety of Hummingbird Species?

There are more than 330 different hummingbird species flitting around the Western Hemisphere, but only 5 percent of them actually live in the United States or Canada. Most species prefer the tropical climate of Central and South America. However, certain hummingbirds do migrate north to breeding grounds in southern U.S. states (and certain western U.S. states), beginning as early as February. Their migration is thought to be triggered by changes in the amount of daylight and by the emergence of flowers, nectar, and insects. Instinct also plays a role in their decision to migrate.

Flying machines, fueled by nectar:

  • Hummingbirds increase their body weight by as much as 40 percent before starting the annual migration. They fly alone, often following a predictable path, stopping along the way to refuel on nectar.
  • During migration, a hummingbird's heart beats up to 1,260 times a minute and its wings flap between 15 and 80 times per second. It is thought that a hummingbird can travel as far as 23 miles (37 km) in a day.
  • Flying 500 miles (805 km) across the Gulf of Mexico, these little birds must remain airborne for about 20 hours. Hummingbirds typically weigh less than 5 grams (0.176 oz) -- about the weight of a nickel.

Frequently Asked Questions

Why is attracting multiple hummingbird species challenging?

Attracting a variety of hummingbird species is challenging due to their specific habitat preferences and territorial behaviors. Each species has unique requirements for food, nesting sites, and climate conditions. Additionally, some species are naturally less common or have limited ranges, making them rarer visitors to gardens outside their usual habitats.

What factors influence hummingbird diversity in a given area?

Hummingbird diversity in a particular area is influenced by geographic location, availability of food sources like nectar-rich flowers, presence of water for bathing, suitable nesting sites, and the absence of predators. Regions closer to the equator or with diverse plant life tend to attract more hummingbird species.

How can I make my garden more attractive to different hummingbird species?

To attract a range of hummingbird species, plant a variety of nectar-rich flowers that bloom at different times, ensuring a continuous food supply. Include plants native to your region to appeal to local species and consider adding feeders with sugar water. Providing perches, shelter, and water sources can also create a more inviting habitat.

Does the use of hummingbird feeders impact the variety of species I can attract?

Using hummingbird feeders can impact the variety of species attracted to your garden. While feeders provide a reliable food source, they may also encourage dominance by more aggressive species, potentially deterring others. To mitigate this, place multiple feeders out of sight of each other to give shyer species a chance to feed.

Are there any specific plants that are known to attract a wide range of hummingbird species?

Certain plants are known to attract a broad range of hummingbird species. For example, trumpet vine, bee balm, and salvia are favored for their tubular flowers that are rich in nectar. Planting a diverse selection of these can cater to different species' preferences and feeding habits.

Can regional climate changes affect hummingbird diversity in my area?

Regional climate changes can significantly affect hummingbird diversity. Shifts in temperature and weather patterns can alter flowering times, impacting food availability. Climate change can also affect migration patterns and the distribution of species, potentially leading to a decrease in the variety of hummingbirds in areas where they were once common.

More Info: University of California, Davis

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