This 8 month old baby can already whistle?!

Credit: SWNS / Katy Reger

A couple were shocked when they found their baby had mastered how to whistle - at just eight months old.

Katy and Travis Reger, both 33, discovered that that their son Asher Reger could whistle one day at home.

Asher, who is now nine months old, is their first child so the couple didn't think much of it and assumed most babies do it.