Bird lovers on the lookout for their feathered friends

To celebrate its 100th anniversary, the Los Angeles Audubon Society sponsors a birdathon. By the end of the expedition from the mountains to the sea, one group had identified 90 species.

Carrying a tripod-mounted scope, bird expert Dan Cooper walked along the trails of Augustus F. Hawkins Natural Park, a small oasis among the warehouses and homes of South Los Angeles. Close by, a small band of bird lovers with sun hats and binoculars followed.