Answer: A hawk. Rufus the Harris's hawk has been used to scare away pigeons from Wimbledon matches for the last 15 years and took over from Hamish. He has his own Twitter and Facebook account and a security pass which lists his job as Bird Scarer. On 28th June 2012, he was stolen from his owner's car but was found three days later on Wimbledon Common. He is also used to scare away birds from Westminster Abbey.