List of Field Research tasks and rewards/2021

Please, note that there are always only either: specific amount of Stardust, or XP, or just one kind of item, or a particular Pokémon encounter for a single task completed, which means only one of following possible rewards is rewarded for single Field Research task completed not all of them!

Event-only tasks
Following Field Research tasks were available during the certain events.

New Year's tasks
Following is the list of research tasks exclusively available only for the time of New Year's.

Unova Celebration Event tasks
Following is the list of research tasks exclusively available only for the time of Unova Celebration Event.