The National Petroleum Reserve–Alaska supports more waterbirds than any other place in the Arctic, including a globally significant population of King Eiders. Photo by Gerrit Vyn. America’s Arctic: A Remote Patch of Oil-Rich Tundra That Teems with Migratory BirdsAbout 23 million acres of tundra lakes and wetlands, set aside more than 100 years ago as the National Petroleum Reserve–Alaska, are toda