Stormfly's Offspring

Stormfly's Offspring is an individual introduced in the game, Dragons: Rise of Berk, but may refer to any dragon children Stormfly may have had, such as in the movie short, Gift of the Night Fury.

Official Description
"Astrid had a memorable first Snoggletog with the dragons... Stormfly left her a Nadder Egg!"

- Dragons: Rise of Berk

Birth
In the events of the movie short, Gift of the Night Fury, Stormfly leaves mysteriously like all the other dragons on Berk during Snoggletog. Hiccup later ends up hitching a ride on Meatlug, who is journeys to someplace unknown where the other dragons disappeared. They arrive at The Berkery, an island filled with dragons and their newly hatched offspring. He finds Stormfly and Hookfang, and eventually he and all the dragons and their offspring arrive back at Berk. Stormfly presents Astrid with her hatchlings. One of these babies is the individual known in the game, Dragons: Rise of Berk, as "Stormfly's Offspring", though had at least three hatchlings.

Physical Appearance
The "Stormfly's Offspring" individual seen in the game, Dragons: Rise of Berk, is an electric blue base color with a white belly, purple-patched wings, and hot pink horns, claws, half tail, and some wing markings.

However, in the movie short, Gift of the Night Fury, two of Stormfly's offspring appear mostly aqua in color, while one is a sort of indigo color.

Gift of the Night Fury
Stormfly lays and hatches at least three eggs at the Berkery, where Hiccup discovers her and the other Dragons. Hiccup, Stormfly, her offspring, and all the dragons return to Berk just in time for Snoggletog.

Dragons: Rise of Berk
Stormfly's Offspring appears in this game as an exclusive dragon.