Leviticus 1:17 He shall tear it by its wings, but shall not divide it apart. The priest shall burn it on the altar, on the wood that is on the fire. It is a burnt offering, an offering made by fire, of a pleasant aroma to Yahweh. (See NIV)
Leviticus 5:8 He shall bring them to the priest, who shall first offer the one which is for the sin offering, and wring off its head from its neck, but shall not sever it completely. (See NIV)