The reason I ask, is I'm trying to see if there is a way to increase finding Unown...
"A biome should not be thought of as a real world environment or terrain type. It’s a property of a spawn point, nothing more. A spawn point that is of the Water Biome will spawn water Pokémon regardless if there is any body of water to be found anywhere near that spawn point in the real world."
So, if we're talking of Migrations, it meens that as well the biomes migrate?
Nope just the pokemon that spawn