Prison guards in Costa Rica caught a pigeon with a bag of drugs attached to its chest in a bizarre attempt to smuggle drugs to inmates.Officers at La Reforma prison captured it with 14g of cocaine and 14g of cannabis stuffed into a black pouch which camouflaged against its dark feathers. They have previously caught other animals such as cats and iguanas trying to transport drugs into the prison in San Rafael de Alajuela, local websites have reported.