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The edible nest swiftlet, a species of aerodramus bird, is known for the whitish bird nests it makes from its solidified saliva. These are prized as a culinary delicacy in China because they are believed to have health-enhancing properties, especially for the skin and sex drive. They are also said to reduce the risk of lung disease, and cure cancer. However, growing popularity has led to the swiftlet population being rapidly depleted. In order to maintain the supply, farmers have established ranches where they attract the birds with sweet drinks and other in