English: “The pieces, the head” — was the head not already included among all the pieces? Why is it singled out? Because it is said “and he shall strip the olah and cut” — I would have only pieces that are within the stripping; [“the head” is] a building block to include the head.
In the sugya: The head is skinned differently from the body pieces. Without a special inclusion, one might have thought it is outside the arrangement of “the pieces.” Singling out “the head” brings it onto the fire despite that difference.
Type of Learning
Ribbuy of the head despite separate treatment in skinning — binyan av from the explicit mention.
What Is Learned
The head is arranged on the fire even though it is not skinned in the same way as the other pieces. Explicit “the head” after “the pieces” is what includes it.