Some Reddit users have reported that some of their spawns have turned into rare spawns like Dragonite, Snorlax, Squirtle and Bulbasaur.
This could be either the result of the next migration, which was expected to take place this month or just some random instances of higher percentage rare spawns.
The players are still confused whether these are the results of nest migration because their nests are not completely migrating at this point. Instead they are getting to see new Pokemon spawns in their areas. Players are noticing an unexpected increase in the spawns of Snorlax and Dragonite along with an increase of already evolved Pokemon.
We are not sure what could be reason behind this unexpected increase of rare Pokemon spawns and we await for more details from the Reddit community.