Zebra finch baby birds learn to speak in a similar way as humans. First they learn simple sounds, then more complicated.
What do you think your first words were? How old were you when you first made those sounds? Baby finches tend to make the 'ff' sound when they are about 3 days old.
Did you know that baby Zebra finch are just one inch at birth? The mother lays one egg a day, usually there are about 5 eggs a season.