This is a printable base for creating bird spikes. Simply print out however many you need to cover the area you are protecting, cut a 10-inch length of 14AWG wire for each base printed, and bend so it fits into the base, snap them together, and either tape or glue them down to the surface to be protected.

Bird spikes are commonly used to deter birds from roosting or nesting on ledges. In my specific case, I have an issue with sparrows and robins nesting behind my shutters, resulting in bird droppings all over my porch and aggressive birds when eggs are present.

Openings for wire are 2mm as is the cutout in the plate. This makes for a snug fit for 14AWG galvanized steel wire. Minimum width of the plate is 1cm so you should be able to find some outdoor-rated tape that will fit well, or use clear silicone adhesive.