First, that is nothing you have control over once the bird leaves your care. It's not yours anymore, and I doubt that anyone would sign a contract stating that the bird would never be eaten.
What are you going to do if no one wants them for pets and the city says they have to go? Face the...
There's always freezer camp. Everyone and their brother have roosters available all the time, everywhere, there generally isn't a fast way to find a "good home" for them.... even if you give them to someone, they may end up in someone else's freezer anyway.. free chicken = free dinner. You...