Leviticus 1:14-17

14‘But if his offering to the Lord is a burnt offering of birds, then he shall bring turtledoves or young pigeons as his offering.

15The priest shall bring it to the altar, and wring off its head, and offer it up in smoke on the altar; and its blood is to be drained out on the side of the altar.

16He shall remove its crop with its feathers and throw it next to the east side of the altar, in the place for ashes.

17Then he shall tear it open by its wings, but shall not sever it. And the priest shall offer it up in smoke on the altar, on the wood that is on the fire. It is a burnt offering, an offering by fire, a sweet and soothing aroma to the Lord.