Screaming Death

The Screaming Death is one of the villains in Dreamworks: Dragons. It's a new dragon (sub-species to the Whispering Death) that appeared in Tunnel Vision, the fourth episode of the Defenders of Berk season. According to Fishlegs, it is not documented in the Book of Dragons, but is dubbed by Tuffnut.

Info
The Screaming Death appears to be a mutated, albino Whispering Death. It is white in color, has large red eyes, a longer and more massive body and tail than a normal Whispering Death. It also has three rows of teeth, but they are aligned differently than those of the Whispering Death, set in a chin reminiscent of the Seadragonus Giganticus Maximus. Like the Whispering Death, it can tunnel underground, and can shoot spikes from its body, although the tunnel it creates and the spikes it launches are larger. But unlike the Whispering Death, the Screaming Death shoots explosive balls of fire not unlike a night fury but similar to a mortar. During this, it also releases fire from behind it's frill. Judging by the massive size of what is apparently a hatchling, this albino giant is probably one of the biggest dragons of them all. It is attracted to sunlight as opposed to having an aversion, like the Whispering Death.

The Screaming Death gets it name by its incredibly disorienting roar that can affect the flight of other dragons.

Defenders of Berk
In the episode The Iron Gronckle, Savage and his fellow Outcasts return to Berk to check on the infant Whispering Deaths that have hatched in the caves beneath the village. Many egg shells are scattered along the cave floor, but much to Savage's surprise, one egg shell is truly massive. The hole left in the ceiling from the infant as it burrowed out is nearly the size of an adult Whispering Death tunnel, but this creature has just hatched. It can be assumed that this was the egg of a Screaming Death, and as Savage and his men retreat from the cave, the Screaming Death's roar can be distinctly heard echoing through the cave.

The Screaming Death first appeared in the episode, Tunnel Vision as the leader of the Whispering Death. It attacked Berk along with the hatchlings. Hiccup discovered the Screaming Death was attracted to the light off Hiccup's shield and used it to lure the dragon into ramming into one of the rock pillars. Its wing was injured from rocks falling on it. The Whispering Deaths take the Screaming Death away from Berk and nurse it back to health. However, Hiccup is concerned that the Screaming Death will return, noting that Whispering Death hatchlings are very territorial of their birthplace.