Certain birds receive specific buffs that make them much more effective during events. Please remember that this buff applies only to event levels for the duration of the event.

You can see which birds are buffed by looking to the top right of the Event Island’s screen.

Customarily, on the top row, you will see the special Event Birds and their corresponding buffs.

On the second row, you will usually see the previous event's special birds and their corresponding buffs. Please note that if a 5-star version of a 4-star bird or a Master 5-star version of a 5-star bird has appeared as an event reward, the buff pertains to these boosted versions of the birds. 

Finally, on the bottom row, you will see an attribute-specific buff. All birds that share the selected attribute, will receive the corresponding buff for the duration of the event.