This Month in Photo of the Day: National Geographic Magazine Features

Pale as moonlight, whoopers settle down for the night on a frozen stretch of Hokkaido's Notsuke Bay. "These birds aren't shy," says the photographer. Fed by humans, in some places they're a tourist draw. "Good for tourism, not the swans," a Japanese biologist says.

See more photographs from the December 2010 feature story "Swan Serenade."