I think Hall, that a pigeon knows the best means of getting what is right and wrong for it's welfare if given a natural life where everything is available and will only take artificial products when there is no alternative.
And would never touch all the commercial rubbish if there was a natural alterative, if they are fastened up 20 hours a day and can only have what is put in front of them ???
Me thinks some fanciers pigeons go fielding when they think they are flying and get themselves a cure for the rubbish some fanciers put down their throats.