Bird spikes are physical bird deterrents used to prevent birds from landing or perching on surfaces such as ledges, roofs, signs, and other structures. They are typically made of plastic or stainless steel and consist of rows of pointed spikes protruding upward. The spikes make it uncomfortable or impossible for birds to land, roost, or nest in these areas, thus discouraging them from settling there.

Bird spikes are often used in urban environments to deter pest birds such as pigeons, seagulls, and sparrows. They are considered a humane method of bird control because they do not harm the birds; rather, they simply create an inhospitable environment that encourages them to seek alternative roosting or nesting sites.