I wanted to design a new evolved form of Wingull that can only be found in the Galar region. The idea's sort of a mix between regional evolutions like Obstagoon & how some pokémon just evolve into their regional variants like Pikachu, Cubone, & (most likely) Koffing
The Wading Pokémon
Ability: Intimidate/Keen Eye
"Herocious are one of the most vicious predators of the Galar region, with their biggest threats being other birds of prey such as Braviary or Corviknight. Herocious normally stand on ponds or other areas carefully observing their surroundings. Once they spot their prey, they swoop down and attack on sight. They're also not afraid to play dirty when dealing with competition, going as far as to knock other pokémon out with their legs or mercilessly peck at their eyes. They're often referred to as "Gyarados with Feathers" due to their savage natures.
Researchers believe that Herocious are the original evolved form of Wingull due to their similarities in hunting and staying perched in high places. However, after Wingull were brought over to other regions, they began to mellow down due to the lack of competition and more abundant supply of food than what was available in Galar. This more than likely caused a change in Wingull's behavior, which led to them evolving into Pelipper in other regions."
Galarian Forms: Herocious (Wingull's Galarian Evolution)