A fragment of a  limestone vessel, found in the fill near the southern wall of the Western Wall, bears the inscribed word KRBN (korban), which means “sacrifice.” Two crudely drawn birds, identified as pigeons or doves, also appear, upside-down and below the word. The vessel may have been used in connection with a sacrifice to celebrate the birth of a child, since these birds were traditional offerings on such an occasion.

Leviticus 5:7

‘But if he cannot afford a lamb, then he shall bring to the L-RD his guilt offering for that in which he has sinned, two turtledoves or two young pigeons ,to the L-RD: one for a sin offering and the other for a burnt offering.