One of the major tasks of this study was to document the regional flight patterns of bird populations in Imperial Valley, California. Vast numbers of shorebirds and waterbirds are known to use this region during migration and many spend the entire winter here. Large flocks are often seen moving along the southern shoreline of Salton Sea or out into adjacent croplands to feed. The high voltage electric transmission lines which will be required in connection with future geothermal power plants could pose a serious hazard to these bird populations. Baseline data concerning the locations of heavily travelled flight corridors and the typical range of flight altitudes would provide a valuable input to decisions on transmission line siting. (ERA citation 03:029381)


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