Why is a chicken wing a third class lever?

A chicken wing acts as a third-class lever because the effort is applied between the fulcrum and the load. In this case, the fulcrum is the joint where the wing attaches to the body, the effort comes from the muscles contracting to move the wing, and the load is the weight of the wing itself. This arrangement allows for a greater range of motion and speed, though it requires more effort to lift the wing compared to first- or second-class levers.