Birds
Today the pigeon is the most serious bird
pest associated with human habitations. Pigeons are widely distributed and are frequently found in large flocks in cities
and built up areas. They are often seen in parks and near pavements feeding on foods provided by people. Their natural diet
consists of grains and seeds, but they have adapted well to city life, often relying mainly on scraps, such as cake, bread
and wild seed given or left by the general public.
Pigeons have a negative effect when they
associate too closely with people. Pigeons are often both serious nuisances and pests capable of transmitting diseases, contaminating
our food, and damaging our buildings. Much of the damage caused by pigeons arises from their infestation of buildings. Heavy
fouling occurs at the places where the birds roost, such as monuments and large buildings with ledges. This is not only unsightly,
but will also have a destructive effect, as the acidic droppings will erode the stonework over time. Gutters and downpipes
often become blocked, leading to localised flooding and associated problems. Pigeons frequently deposit their droppings on
pavements, people, buildings, park benches, statues and cars. The droppings are not only unsightly and smelly, but can permanently
stain and corrode some metals. Large amounts of droppings can severely damage and even kill valuable trees and other vegetation.
Droppings on pavements can also cause a dangerous slipping hazard that can lead to serious injury. It is particularly important
to keep external fire escapes free from fouling.
As a general rule, resting, nesting and
roosting sites are frequently located in protected areas up high on structures. Pigeons inhabit roofs, ledges, drains spouts,
lofts, steeples, caves, and ornamental architectural features.