Care2: Scientists Find More Than 2 Billion Birds Mirate Over the Gulf Coast Every Spring

Until now researchers have been making a best guess at the number of birds passing over the Gulf of Mexico during their spring migration, but a new study has found there are more than two billion making the annual trek.

Habitats along the Gulf of Mexico provide a wide variety of migratory birds who travel through the area annually from their wintering grounds in the  southern U.S., Caribbean, and Central and South America with vital resources as they head to their breeding grounds in North America in the spring.

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