ARBUCKLE, Calif.—On a misty December morning, a few dozen sandhill cranes stood in shallow water in the middle of a flooded rice field in the Sacramento Valley, about 90 miles north of San Francisco. The cranes, statuesque wading birds with a long, elegant neck and broad wings, appeared remarkably still for a gregarious species known … Continue reading California Rice Fields Offer Threatened Migratory Waterbirds a Lifeline