Leviticus 1
16 Ref And he is to take away its stomach, with its feathers, and put it down by the east side of the altar, where the burned waste is put:
17 Ref And let it be broken open at the wings, but not cut in two; and let it be burned on the altar by the priest on the wood which is on the fire; it is a burned offering; an offering made by fire for a sweet smell to the Lord.