Bird predation is a significant threat to marketable yields in fruit crops. Loss estimates are about 10% to 20% in blueberries, 5% to 30% in cherries, and 5% to 10% in grapes. However, some vineyard sites have reported up to 50% losses. There are many avian deterrents on the market. Success with deterrents varies by site and bird species. In most cases, the best results come from a multipronged approach.
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