Free: Contests & Raffles.
You looking for a bird or just bird parts. You really don't need a live bird at this point. All you need is the wings and skin. You can buy those from someone who raises them. You don't want an old nasty rotten one. Just keep the parts in the freezer and they will last forever. Pidgeons are used because they return to the coop and are easy to take care of. Also much cheaper then game birds to use.