Pigeon deterrents can range from pigeon netting, protecting large areas demonstrated in the left picture, or sprung loaded bird wire systems for ledges where stealth is important on listed buildings, along with stainless steel anti-roosting point, also used mostly on ledges.

Pigeon deterrents using the stainless steel sprung loaded bird wire system protecting a stone ledge on the sixth floor.Pigeon deterrents like these three examples will prevent pigeon roosting and nesting when protection is installed.

To the left we have a more common pigeon deterrents that can be seen on most high street shops, protecting signage and window ledges.
Pigeon deterrents are very important to your business, as pigeons fowling down the windows might prevent customers from entering the shop.