The Maniraptora line shows it to be so, as does the dna of all avian species.<quoted text>
So a bird became a bird?
And this proves that birds were once dinosaurs?
You don't have any warning lights go off when you examine this argument?
But many new species that blur the lines between the two species have been unearthed in China in recent discoveries. When you get to those that you can't be sure if they are truly a bird or really a dinosaur , there is no doubt where they came from.