I’ve been looking everywhere for it online and I can’t figure out who it might be. Thanks!
This Pokémon is Xatu from the Johto region, it is the evolution of Natu.
Xatu is a Psychic/Flying type Pokémon. It is number 178 in the Pokédex and described in Pokémon GO as:
Xatu stands rooted and still in one spot all day long. People believe that this Pokémon does so out of fear of the terrible things it has foreseen in the future.
More details can be found at the Pokémon Go Wiki.