I've taken to deboning the breasts of the birds that I shoot. I often will put the meat in a panfry or might kabob the meat, and it's more pleasant to eat the meat morsels off the bone. At any rate, when you debone the meat, you will often find that a lot of the shot comes out right there. If you cube the meat, then your chances go way up that the shot will come out. The last several times that I made jalepeno ginger dove and rice, I found a couple of pieces of shot in the marinade, but no one found a single piece in the meat.
I find also that I get more passthrough with larger shot pellets for a given game. If 8 or 9 drops a dove, 7.5 seems to leave me fewer shot. Quail, with its tender meat and the 6 or 7.5 shot that I usually use to shoot it, rarely leaves a pellet. (They're easy to find in that transluscent meat, anyway)
The worst time I ever had was with duck when my dad brought it home and mom would just roast it. (Yuck. Mom's a good cook, but she hasn't a clue about duck.
)
With turkey, you're generally using larger shot because it's a stationary target, and if you're aiming at the head, few pellets will end in the breast. Those that do, should be easy to find.