'Sparrows' in the Bible

Are not two sparrows sold for a penny? and not one of them shall fall on the ground without your Father:

Fear not therefore: ye are of more value than many sparrows.

Are not five sparrows sold for two pence? and not one of them is forgotten in the sight of God.

But the very hairs of your head are all numbered. Fear not: ye are of more value than many sparrows.