Answer:
If you pull on the bicep muscles of the chickens wing, you will pull on the tendon that connects the muscle to the bone. Then the tendon will pull on the bone that it is attached to and cause it to move.
Without tendons, muscles and bones are independent from one another, so by connecting muscles and bones, whenever a muscle contracts or moves, the bone moves as well. These tendons are known as 'connective tissue'.
The ligaments will allow the bones to move but will keep the bones together in the joint. Muscles surrounding the bone are actually the tissue of the chicken wing that is commonly referred to as the meat.
