Who is the pigion Pokemon?

There isn't a Pokemon that is specifically a "pigion." However, there are a few Pokemon that might remind you of pigeons or have pigeon-like features:

* Pidgey/Pidgeotto/Pidgeot: These bird Pokemon have a similar appearance to pigeons, especially Pidgey with its grey and brown coloring.

* Taillow/Swellow: These bird Pokemon are also similar to pigeons in their appearance and flying style.

* Fletchling/Fletchinder/Talonflame: While these Pokemon are more fire-themed, their initial form, Fletchling, has a grey and white color scheme that might remind you of a pigeon.

It's worth noting that Pokemon often combine features of different real-world animals, so it's possible that a future Pokemon could be designed with a more explicit pigeon theme.