Had a creativity spurt, and decided to make more Pokemon anthro characters. However, decided to put a bit more thought behind these ones, being legendaries and all. (And possible antagonists for some of my other pokemon anthros.) And after a bit of research, what I found was pretty interesting. The legendaries from Pokemon X and Y were based on Norse mythology and the World Tree "Yggdrasil." Instead of putting my interpretation here, I'll post what the Wiki says.

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"Yveltal's appearance is based on an avian in the shape of the letter Y. It may be based on the giant Hræsvelgr, or "Corpse Swallower," which takes the form of an eagle and sits at the end of the world, creating wind as it flaps its wings. It may also be based on the Hawk Veðrfölnir or the unnamed eagle. According to the Poetic Edda, the unnamed eagle resided at the top of the world tree Yggdrasil, with Veðrfölnir sitting between its eyes. Yveltal may be a personification of the Black Death, possibly drawing further inspiration from the avian-like costumes worn by Plague doctors who tended to the sick. Much like Yveltal had taken the lives of countless humans and Pokémon alike 800 years ago, Human Y. pestis was responsible for the death of at least one-third of the European population between 1347 and 1353. Yveltal also likely draws inspiration from carrion birds such as crows and vultures. It may have some basis on the wyvern of European legend and folklore. "