Pigeons most often foul buildings and should not be tolerated particularly in workplaces, clinics and educational establishments. Buildings can be ‘proofed’ against nesting pigeons in a variety of ways and culling of overpopulations may also be allowed if no other solution is practical. Pigeon guano contains several potentially lethal disease almost all of them affecting the respiratory organs, histoplasmosis is probably the most well known of these.
Seagulls are very aggressive birds that inhabit roofs and parapets for nesting purposes and return to the same roof year after year. Most seagulls are protected and although nests and eggs can be removed in rare cases, usually a thorough bird-proofing programme will be more efficient, humane and cost-effective in the longer term. Wires, deterrent devices and netting can be utilised to keep building free of seagulls.