Thats acutally old news. Most of those farmers released the birds by the thousands, because there was no value in feeding them etc. The birds all have an untraceable, ASGS# leg band on them and are still being found across the us. I had 3 of them myself. If you ever find one, contact the Pigeon talk website.
I had a few that landed back in Ohio. Kept them a few days and ate them. Back in germany we used to eat the not up to standard racing pigeons of my exes uncle. But that pigeon king has been around a few years.