Angry Birds POP!/Limited Time Birds

Red
Used to be a guest star for a limited time during the stated period, until he is now permanently playable in "Drop the Pigs" and "Defeat King Pig".
 * March 21, 2015 - June 3, 2015 (Guest Star)
 * October 3, 2015 - November 3, 2015 (Halloween costumed Red Devil)

The Blues
Available to play as a guest star for a limited time during the stated period.
 * July 6, 2015 - July 20, 2015 (Guest star)
 * June 23, 2016 - July 7, 2016 (Summer Treats)
 * March 24, 2017 - March 27, 2017 (Guest Star)
 * June 2, 2017 - June 6, 2017 (Guest Star)
 * July 8, 2017 - July 10, 2017

Chuck
Used to be a time limited bird during the stated period, until he is now permanently playable in "Piggy in the Middle".
 * 13 August, 2015 - 27 August, 2015 (Guest Star)

Shakira Bird
Available to play for a limited time in the stated period.
 * September 16, 2016 - September 30, 2016 (Guest Star)

Dahlia
Used to be permanently playable in the "Piggy in the Middle", until her removal in the Autumn Orchard update and available to play as a guest star for a limited time during the stated period.
 * November 2, 2015 - November 16, 2015 (Removal from the game)
 * March 2, 2017 - March 5, 2017 (Guest Star)
 * June 29, 2017 - July 4, 2017 (Guest Star)

Bomb
Used to be a guest star character for a limited time during the period, until he is now permanently playable in "Beat the Clock".
 * November 17, 2015 - December 1, 2015 (Guest Star)

Luca
Used to be a non-playable character until the New Year 2016 update and he is available to play as a guest star character for a limited time during the stated period.
 * January 7, 2016 - January 18, 2016 (First time guest star)
 * August 4, 2016 - August 18, 2016 (Olympigs)
 * February 16, 2017 - February 19, 2017 (Guest Star on iOS)
 * February 21, 2017 - February 23, 2017 (Guest Star on Android)

Matilda
Used to be a guest star character during the stated period, until she is now permanently playable in "Free the Hatchlings".
 * Feburary 9, 2016 - February 22, 2016 (Guest Star)

Hatchlings
Available to play for a limited time during the stated period.
 * March 31, 2016 - April 7, 2016 (Guest Star)
 * April 26, 2016 - May 26, 2016 (Movie Mania)
 * August 22, 2016 - August 30, 2016 (Freedom for Hatchlings)

Gale
Used to be the main boss level in "Defeat Gale", until her removal in the A Song of Eggs and Bacon v2.23 update, was replaced with "Defeat King Pig" and now she is now a guest star character available to play for a limited time during the stated period.


 * September 1, 2016 - September 14, 2016 (Removal from the game)
 * February 2, 2017 - February 5, 2017
 * April 6, 2017 - April 9, 2017
 * July 5, 2017 - July 7, 2017

Phantom Bird
Available to play for a limited time during the stated period.


 * October 14, 2016 - October 28, 2016 (Guest Star)
 * October 29, 2016 - November 11, 2016 (Guest Star)

Super Red Bird
Available to play for a limited time during the stated period.
 * November 30, 2016 - 6 December 2016 (RED event iOS exclusive)

Christmas Red

 * He is playable only in Christmas costume in Christmas 2015.
 * December 8th, 2016 - December 24th, 2016 (Christmas 2016 event)

Willow
Used to be the in "Free the Hatchlings", until her removal and now she is now a guest star character available to play for a limited time during the stated period.
 * April 21st, 2017 - April 23rd, 2017 (Guest Star)
 * June 19, 2017 - June 21, 2017 (Guest Star)