AGREE with most of the guys -i have my birds in a housing estate -never let them out on a morning ,when they do go on the house roofs call them off if they dont come chase them off with a sponge ball or a fishing rod[pole]. when they are young they just flop back down.only feed on a night and dont leave any corn in. if you do feed in the morning only seed and then only 2 handfuls per 30 birds use this seed to tame your birds spend a little time in with them while they are eating the seed. when u have control let them out a little earlier and watch them fly the heavens.----------you are the boss and roof toppers dont win races .they just take the rest of the team onto the roof.cull them out or start to keep fancy pigeons.