A team of researchers went into the woods of Maine searching for a mysterious bird of the eastern forests — a golden eagle. They're conspicuous in the American west but secretive in the east.

“For nearly 250 years, we called the bald eagle the national bird when it wasn’t,” said Jack Davis, co-chair of the National ...

This bird is widespread in the wilder country of North America, Europe and Asia. About the same size as the bald eagle, the golden eagle is less of a scavenger and more of a predator, regularly ...