Leviticus 1:14-16

New Revised Standard Version, Anglicised Catholic Edition

¹⁴ If your offering to the Lord is a burnt-offering of birds, you shall choose your offering from turtle-doves or pigeons. ¹⁵ The priest shall bring it to the altar and wring off its head, and turn it into smoke on the altar; and its blood shall be drained out against the side of the altar. ¹⁶ He shall remove its crop with its contents^[a] and throw it at the east side of the altar, in the place for ashes.