Just recently got into this myself. I needed a meat grinder for an upcoming elk hunt. I ended up with the STX Megaforce, sold on Amazon for around $200. Rave reviews and not too expensive. I got it because many reviewers specifically mentioned using it to grind up chicken wings.
So far I am very happy. It will grind just about anything I put in there. After processing my “human” food, I used this grinder to make a 30 pound vat of ground elk (left over bits, organ meat), dove, rabbit, peas, carrots. The dove were whole and frozen (no feathers or head). Just sliced them in half, and fed them through, bones, guts, skins and all. I ran it through twice but the resulting burger looked and smelled delicious! And oh yeah, the dogs loved it too!
You might need a commercial grinder if you really plan on doing bigger bones from the rabbit or chicken. The Weston looks like it might fit the bill. Good Luck!
