President Joe Biden has made it official: The bald eagle is now the national bird of the United States. Biden signed a bill into law on Tuesday to correct what had long gone unnoticed and designate the bald eagle as the national bird. The bald eagle has been a symbol of the United States for more than 240 years, appearing on the nation's Great Seal since the design was finalized in 1782. That year, Congress also designated the bald eagle as the national emblem. But the honor of becoming the national bird had remained elusive until now.