Pigeon Spikes: Protect Your Space from Bird Intrusion Birds, particularly pigeons, are seen to be very peaceful birds and add a lot of vibrancy and life to the surroundings. However, sometimes their presence becomes a nuisance when they start breeding or roosting on buildings, balconies, ledges, and other structures. Although their cooing might be bearable, what follows after they leave can become a problem, with droppings, feathers, and nesting...