It is in the nature of pigeons to be trusting to humans. Ever since Europeans captured pigeons from their rocky cliff habitat and domesticated for the purpose of messenger birds, pigeons have adapted to city life although their use as messengers is obviously obsolete nowadays. In fact they have become pests in most urban areas, treating buildings as their homes, destroying property, scavenging food and spreading diseases which are why there are people who trap pigeons for a living. However when one approaches pigeons with the intent of trapping them, the birds seems to sense the hostile intentions and fly away immediately. Trapping pigeons need skill. The most common way to trap the feral pigeons is to use bait, lots of them and then any other device such as baskets, metal cages and boxes will work in trapping them. But before you go out and stop feral pigeons from dropping bird poop onto your car, ask your local authorities first what are the limits in pigeon trapping.