Leviticus 1:14-17

14If, instead, one’s offering to the LORD is a burnt offering of birds, he is to present a turtledove or a young pigeon. 15Then the priest shall bring it to the altar, twist off its head, and burn it on the altar; its blood should be drained out on the side of the altar. 16And he is to remove the crop with its contents1 and throw it to the east side of the altar, in the place for ashes. 17He shall tear it open by its wings, without dividing the bird completely. And the priest is to burn it on the altar atop the burning wood. It is a burnt offering, a food offering, a pleasing aroma to the LORD.