Pigeons and humans have lived in close proximity for thousands of years. Despite the social perception as dirty and disease-ridden, pigeons are actually very clean animals and there is very little evidence to suggest that they are significant transmitters of disease. Moreover pigeons are incredibly intelligent animals and you can find the proof of that in a new Experience The World program, where birds experts Riccardo, Julia and Irina will tell you everything about the private life of pigeons.