General
Gang-gang cockatoos originate from Taggelisk and the Ixan Jungle, where it is warm even when the Keep is snowbound. By a stroke of lucky timing, they most commonly start trying to attract mates at the same time magi start preparing for winter solstice festivities. This is highly fortunate as they are excellent ornament-makers, and males cover trees with their creations in order to display to prospective partners just in time to make the trees around the Keep very festive. Females are capable of making ornaments as well, and signal their choice in partner by helping to finish decorating the chosen tree, but first will spend a great deal of time landing on each prospective mate's tree and singing while inspecting it carefully. Males who sing back while decorating are more likely to be chosen as mates. Bonded pairs will sing lovely duets together while they decorate and build their nests. Since they eagerly pick up new songs and will invent new variations on them, magi have taught the population at the Keep a great variety of traditional solstice tunes to help set a festive atmosphere.
Egg
This black egg has a flamboyant red plume poking out of it.
Hatchling
Gang-gang cockatoo hatchlings are a handful to raise, constantly stealing anything that catches their fancy from their magi and attempting to make ornaments with them. Being rather clever birds, even at a young age, hiding things or putting them out of reach rarely is very effective for long. Unfortunately, hatchlings are still clumsy at crafting, and so the materials they steal are usually broken beyond repair and then discarded. They also like to sing loudly whenever they're not trying to steal something, making sleeping a difficult proposition at times. Fortunately, their singing is charmingly melodious, and gang-gangs will readily learn any songs their magi hums to them, and even sing back variations of the tune.
Adult
Adult gang-gangs learn some measure of calm compared to hatchlings, at least when raised by magi, and are slightly more likely to wait for permission to take something that catches their fancy than steal it outright - though given the strong, bitey beaks on adults, usually magi don't bother trying to deny their companion whatever materials they claim. Adult gang-gangs do tend to be a bit more discerning, though, taking things that are more likely to work in ornament construction, and will proudly bring some of the resulting baubles to their magi as thanks. The remaining ornaments tend to end up decorating trees around the Keep as the gang-gangs use them to attract mates. Sometimes this leads to squabbles with ornate sylphs, but it's not uncommon to find a bird and a sylph begrudgingly working together on the same tree for mutual benefit, singing and chiming what seem to be instructions at each other.
Notes
Obtained from: Donation (Dec)
Breeding: Yes
Renaming cost: 2000 gold
Release date: December 1st 2023
Element: Light 
Breeds with the following:
Gang-gang Cockatoo + Gang-gang Cockatoo = Gang-gang Cockatoo (Guaranteed) Cost: 3 shards
Gang-gang Cockatoo + Galah Cockatoo = Gang-gang Cockatoo (Guaranteed) Cost: 3 shards
Gang-gang Cockatoo + Galah Cockatoo = Galah Cockatoo (Guaranteed) Cost: 3 shards
December 2023 3-shard Donation Pet
Sprite art: Mysfytt | Description: Kestrad