Most of the lakes and marshes of the Klamath Basin were "reclaimed" and drained for agriculture nearly 100 years ago--only 20% remain, but the Klamath Basin National Wildlife Refuge Complex on the Oregon/California border, is still the most important waterfowl habitat on the Pacific Flyway. However, last month over 10,000 birds died there from overcrowding as a result of a water cut-off by the U.S. Bureau of Reclamation. This was the biggest die-off in a decade.