Amazing Migration Facts
We all know many birds migrate in the spring and fall – 4 billion birds are headed south over the United States this season.
Some birds, such as Canada geese, migrate during the day, needing visual cues to fly in their well-known V formation.
- Broad-winged hawks use thermals to help propel them on their migration south.
- Some species of hawks and falcons use thermal updrafts to convey them on their way, carrying them upward like an elevator before they glide down to find the next updraft, saving valuable energy by coasting over much of their journey.
Be prepared for some surprises when learning how they do it.
Author's summary: Birds migrate with unique strategies.