The answer is: Two turtledoves or pigeons

Luke 2:22-24 - among the Jews, a mother would remain at home for about 40 days after the birth of a boy and about 80 days for a girl because she was considered unclean. After this she presented him as "holy to the Lord" and offered the sacrifice as according to the law.

The purification practices following childbirth, as described in Luke, reflect a deeply ingrained cultural and spiritual tradition within Jewish society. Mary and Joseph presented two turtledoves or pigeons, a choice particularly significant because it symbolizes their humble economic status. According to Leviticus 12:6-8, while wealthier families would typically offer a lamb, the allowance for poor families to provide birds offered access to this vital spiritual act for all.

This ritual was known as the "rite of purification." It reminds us that even from his infancy, Jesus was immersed in customs and laws that connected his earthly experience to his spiritual heritage. It's fascinating to note that interpreters often point out parallels between Jesus' offering—itself uncompromisingly simple—and his teachings, which frequently emphasized humility, love, and kinship over wealth and status.

Furthermore, the turtledove has deep symbolic roots in various biblical texts. For instance, in the Song of Solomon, the turtledove beautifully encapsulates themes of loving innocence and peace. Its mention here also subtly echoes the honesty of the sacrifices over power—showing that in the eyes of spirituality, status does not define the worth of love.

In essence, Mary's offering transcends her socio-economic validation—it aligns Jesus with a lineage not confined to wealth but grounded in grace and the sacred. Through this act, the readers not only engage with the narrative of Jesus’ life but also inhabit a profound reflection on the gifts of spirit that cherish sincerity over sophistication.