Bird deterrents are devices or methods used to prevent birds from nesting or roosting in specific areas. Common types include visual deterrents like scarecrows and reflective materials, as well as auditory deterrents such as noise-making devices. These tools aim to create an environment that is unwelcoming to birds, thereby protecting property and crops. In addition to physical devices, some people use bird spikes or netting to block access to certain areas. These deterrents are often employed in urban settings, agricultural fields, and on buildings to minimize damage and health risks associated with bird droppings.