Leviticus 1:12-17

1:12 Next, the one presenting the offering must cut it into parts, with its head and its suet, and the priest must arrange them on the wood which is in the fire, on the altar. 1:13 Then the one presenting the offering must wash the entrails and the legs in water, and the priest must present all of it and offer it up in smoke on the altar – it is a burnt offering, a gift of a soothing aroma to the Lord.

From the Birds

1:14 “‘If his offering to the Lord is a burnt offering from the birds, he must present his offering from the turtledoves or from the young pigeons. 1:15 The priest must present it at the altar, pinch off its head and offer the head up in smoke on the altar, and its blood must be drained out against the side of the altar. 1:16 Then the priest must remove its entrails by cutting off its tail feathers, and throw them to the east side of the altar into the place of fatty ashes, 1:17 and tear it open by its wings without dividing it into two parts. Finally, the priest must offer it up in smoke on the altar on the wood which is in the fire – it is a burnt offering, a gift of a soothing aroma to the Lord.