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Author      Title/Abstract      

Source Control and "Hazing" BMPS for Fecal Coliform Reduction through Bird Population Management
Author: Nancy Gardiner
Date: 7/206
StormCon 2006 Conference

Off the southern California coastline, Western gulls typically live in the Channel Islands, off Los Angeles and Ventura County. However, in recent years, gulls have been observed at inland reservoirs, over 50 miles inland from the coast. The presence of gulls on the reservoirs has been correlated with increased bacterial indicators in reservoir waters. It is believed that Western gulls have migrated inland because of safe roosting sites and nearby reliable foraging opportunities, particularly during storm events. The increase in gulls may also be correlative with the creation of a reliable food source in the area. One possible food source is local landfills that are located along natural flyways (e.g., rivers). Some landfill operators have responded by using falconry to control the gulls; however, this has not resulted in a reduction of gulls frequenting inland lakes. Therefore, some efforts have been focused on developing additional BMPs to minimize foraging opportunities and to make roosting sites unattractive to the birds. These BMPs fall into two general categories: public education controls and bird hazing. These approaches have broad applicability to managing birds that have been identified as a source of concern for water quality.