What brought a quarter-million birds to the huge, often overlooked lake, and will they return? Answers may lie at their feet.

In Arizona's Sky Islands, dry summers may be pushing some bird species away from traditional migratory routes.

President Joe Biden is convening the leaders of Australia, India and Japan for a Quad summit in his hometown of Wilmington, ...

Americans will go to the polls to choose their next president. But the process that translates those millions of votes into ...

Much of the country will experience a delayed transition to cooler temperatures this year, following a summer with intense ...