Birds such as pigeons, mynas and sparrows are generally not viewed as pests, but these birds in fact are a serious nuisance and have been accorded pest status in many countries. Their droppings foul up and spoil the look of buildings; besides, these droppings are corrosive and cause more serious structural damage. Birds are associated with many human diseases and create harborage areas for secondary infestations of pests such as ticks, mites, fleas, lice, mealworms, carpet & hide beetles, clothes moths, carrion flies & beetles and furniture & deathwatch beetles, which can easily spread to human habitation.
In food processing facilities, birds can cause serious contamination issues either through direct damage or indirectly, through their droppings and shedding of their feathers, etc.
Since human habitation and structures provide ideal roosting and nesting sites for birds, proofing measures (designed to prevent entry, deny landing or roosting areas) such as spikes, netting and wires, are a cost-effective means of dealing with these avian pests.