Have you ever seen a red bird anywhere? Well if you said no, then you haven't seen a Robin! But this particular red bird is only found in Kalos.
It is a Dual Type Dark Flying Legendary Pokemon, and is the version mascot of the Pokemon Y Game, appearing on the box art. Standing 19 feet tall and weighing 447.5 pounds, this avian-like creature resembles the English letter "Y" when it's wings and tail are fully extended. Yveltal has the power to absorb life energy. When it reaches the end of its lifespan, it expands its wings and steals all of the life energy of every living thing around it before transforming into a cacoon to sleep for 1,000 years.