'Sparrows' in the Bible

Are not two little sparrows sold for a copper coin? And yet not one of them falls to the ground apart from your Father’s will.

So do not fear; you are more valuable than many sparrows.

Are not five sparrows sold for two copper coins? Yet not one of them has [ever] been forgotten in the presence of God.

Indeed the very hairs of your head are all numbered. Do not be afraid; you are far more valuable than many sparrows.