"Pigeon Scarer at Charing Cross Hospital"

My family were regularly visting a terminally ill close relative. The pigeon scarer caused us head and ear pain, tinnitus , dizziness and nausea on entering the hospital. For one of us this invariably led to incapacitating full blown migraine attacks. The only way to avoid this was to run into the hospital via another door wearing earplug to minimise exposure. Staff told us they had also begun to suffer dizzy spells. The pigeons seem oblivious. I understand that sparrowhawks eat the pigeons so they can't be poisoned but perhaps the trust could firmly discourage feeding (much in evidence) to reduce the numbers rather than torturing migraine suffers? No one should have to think twice about seeing a dying relative, attending as a patient or going into work.