Answer:
Birds migrate to seek food and nesting locations. Birds living in the Northern Hemisphere migrate northward during spring. In the northern regions, the birds find a high availability of food, such as insects and budding plants. There is also an abundance of nesting locations. When availability of food drops during winter, the birds migrate to southern regions. However, there are certain species of birds, such as hummingbirds, who can withstand freezing temperatures as long as there is adequate food.
Birds have remarkable navigational skills. They can travel thousands of miles every year and return to their place of birth with little deviation of their path. However, the birds are exposed to some dangers during migration. The dangers can be bad weather, inadequate supply of food on the way, falling prey to predators, and collisions with tall buildings.
You can find a large number of migrant birds concentrated in some areas. These areas are known as birding hotspots or migrant traps. Examples of a migrant trap are the giant oak trees in High Island, Texas, that house several migrating songbirds. Such migrant traps are popular internationally among people who love watching groups of migrating birds.
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