Bird droppings look unsightly, harbours disease-causing pathogens, and also represents an obvious slip hazard, particularly for the elderly and/or infirm.
Pigeons and gulls cause damage to properties in general, and are notorious for pecking at small gaps or openings in order to gain access to potential nest sites and food. On roofs, pigeons and gulls will attack the gaps between tiles/slates, and ridge tiles.
In the breeding season (May and June), gulls become extremely protective of their territory, and will attack anything – humans, animals and even vehicles – that they perceive to be a threat to their nests, eggs or young.
As the pest bird populations rise, so too will the problems, and nearby buildings and businesses will suffer as a direct consequence of the increased pest bird problem. This will dissuade people from visiting the area, thus risking damaging social structure and the economy. In addition, the health risks posed to human users of the area will also increase, as will the likelihood of accidents caused by slips etc. due to the bird droppings.
Diseases linked with pest birds can be potentially fatal for young children and older people. An outbreak of disease which can be linked to pest birds in an area will produce much adverse publicity for all concerned, and where little or nothing has been done to manage such a problem, the effects on the organisation concerned can be devastating, leading to bad publicity, legal action and criminal prosecution for a failure of duty of care.