General
Sailors had ancient stories of these birds long before they were ever seen at the Keep, brought there by a wandering Magi whose focus of study was on the night sky. He spent most of his time at the far northern regions where long winter nights gave him much scope for his research. It was in the summer, however, that he discovered these elusive companions. Never afterwards able to fully explicate the process, records from the time give only a hint in his phrasing: "The stars sang to me one night, and in the pale blue dawn as the constellation disappeared, the singing remained -and it was coming from my new companion".
Egg
This feather-tufted egg gives off a soft sidereal glow.
Hatchling
Appearing tiny at first glance, hatchling constellas have an elusive quality to them that extends as far as changing their own size on occasion; they appear to expand come the gloaming. They give off a faint shimmer of illumination during the night hours, no brighter than starlight, and as the sun comes up, completely eclipsing this illumination, both their light and their size fades back until they appear much as any other, more ordinary bird. While still young, they have the power to briefly become insubstantial to avoid predators, although they lose this ability when they mature.
Adult
As they age, constellas lose their sidereal glow, but develop other qualities. They are incredibly steadfast companions to those who gain their loyalty. Predictable as the sunrise, they follow their magi unbidden, no matter how far the journey. Tireless but weaponless, they are peaceful birds who avoid confrontation with camouflage and slight illusion. Their plumage shifts to match that of the sky around them, becoming a deep midnight tone in the evenings, even going so far as to reflect their favorite constellation, and lightening to match the carefree blue with touches of white clouds during daylight. They can enhance this effect with minor illusion magic, which they gradually become more adept at using over the years. No one has ever recorded a constella dying of old age; when their magi passes away, these birds fly straight up into the sky and are never seen again.
Notes
Obtained from: Donation (Mar)
Breeding: Yes
Renaming cost: 2000 gold
Release date: March 15th 2015
Element: Void 
Breeds with the following:
Constella + Constella = Constella (Guaranteed) Cost: 3 shards
March 2015 Midmonth Donation Pet
Sprite rotates based on time of day.
Sprite art: Tekla | Description: ApprenticeCrone