When birds start roosting and nesting on buildings, they can rapidly turn into a nuisance even if they are usually a pleasant sight in the outdoors. Their droppings have the potential to harm structures, discolour surfaces, and spread illnesses. Installing bird spikes is one of the most efficient and considerate ways to stop birds from perching on window sills, rooftops, and ledges. But not every  bird spikes  is made equally. Selecting the appropriate kind for your structure