These wetlands are fascinating conservation-dream hybrids, operated by the U.S. Fish and Wildlife Service. Only about 10% of the original wetlands remain after the region’s water supply was dammed and controlled for crop irrigation. To resolve the conflict between rice-growing farmers and hungry migrating birds, the dry fields are flooded in the fall and winter using a network of dykes, dams, and pumps. Over 35,000 acres of marsh, ponds, grasslands, and seasonal wetlands offer nurture and cover for the millions of birds in traverse.
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