Pigeon

Then he must sacrifice the turtledoves or young pigeons, whichever he can afford,

If, instead, one’s offering to the LORD is a burnt offering of birds, he is to present a turtledove or a young pigeon.

and two turtledoves or two young pigeons, whichever he can afford, one to be a sin offering and the other a burnt offering.

and to offer the sacrifice specified in the Law of the Lord: “A pair of turtledoves or two young pigeons.”

On the eighth day he must bring two turtledoves or two young pigeons to the priest at the entrance to the Tent of Meeting.