Doldrum

Doldrums are dragons mentioned once in How to Steal a Dragon's Sword, page 8 (US version):

“	They were a mixture of some of the nastiest types of dragons in the Archipelago: Razorwings and Tonguetwisters and Doldrums and Vampire Ghouldeaths.	”
	— How to Steal a Dragon's Sword

These were the Red-Rage dragons that attacked Hiccup and the other young vikings as they slept in hammocks on the cliffs at the Gorge of the Thunderbolt of Thor.

No description is given. Its possible Doldrums are a type of larger size Mountain Dragon, as the Razorwings and Tonguetwisters are.

References

How to Steal a Dragon's Sword (Book 9), Cressida Cowell. 2011

Dragon species of

*Cave Dragons*	Brainpicker • Burrowing Slitherfang (Presumed) • Driller-Dragon • Eight-Legged Nadder • Electricsticky • Flamehuffer • Glow-worm • Gronckle • Mocker • Monstrous Strangulator • Octodangle • Red-Hot Itchyworm • Riproarer • Skullion • Slugbulb • Stickyworm • Unknown Cave Dragon

Tree Dragons	Breathquencher • Bullingdozer • Cuckoo Dragon • Dreamserpent • Firestarter • Giant Bee-Eater • Lesser-Spotted Squirrelserpent (Presumed) • Poison Darter • Red Tiger • Scarer • Shortwing Squirrelserpent • Vampire Dragon • Vampire Spydragon • Wolf-Fang

Bog Dragons	Arsenic Adderwing • Basic Brown • Big Spotted Gormless • Common or Garden Dragon • Eight-Legged Battlegore • Flashfang • Flying Gator • Fernwinder (presumed) • Hypnomunk • Long-Eared Caretaker Dragon • Marsh Tiger • Monstrous Nightmare • Poisonous Piffleworm • Rhinoback • Sidewinder • Squealer • Stink Dragon • Toxic Nightshade • Venomous Vorpent

*Nanodragons*	Centidile • Drowsy-Tipped Dragonmouse • Electricsquirm • Emperor Beetleboog Bolderbug • Flutterfire • Long-Eared Flutterfire • Plankenteenie • Prickleboggle • Tiddly-Nip Tick-Botherer • Unknown Nanodragon

*Mountain Dragons*	Bullguard Slavedragon • Bullpuff (Presumed) • Deadly Shadow (Classed Twice) • Exterminator • Gloomer • Grimler • Hellsteether • Hogfly • Mood-Dragon • Puggle • Raptortongue • Razorwing • Sniffer Dragon • Snub-Nosed Hellsteether • Specklehound • Stealth Dragon • Tonguetwister

Sky Dragons	Bullrougher • Chickenpoxer • Deadly Shadow (Classed Twice) • Devilish Dervish • Hurricane (Presumed) • Rageblast • Ravenhunter • Rocket Ripper • Silver Phantom • Tornado • Two-Headed Gormatron • Windwalker • White Dragon (Presumed) • Zebramount

Sea Dragons	Brainless Leg-Remover • Darkbreather • Doomfang • Dreader • Golphin • Gorgenghast • Horrors • Lesser Blackbacked Seadragon • Leviathorgan • Monster of the Amber-Slavelands • Polar Serpent • Sabre-Tooth Driver Dragon • Shandshark (Presumed) • Savager • Seadragonus Giganticus Maximus • Sharkworm • Thor's Thunderer • Thunderer • Unknown Sea Dragons • Winterflesher • Woden's Nightmare

*Unknown Class*	Bloody Crocoraptor • Blubberwing • Carrier Dragon • Caterbillar • Deadly Nadder • Deadly Nightshade • Deepest Purple Fleshfang • Dimbruiser • Doldrum • Eaglefly • Fire Dragon • Giant Deathwatch • Goreblaster • Gorebluffer • Gorebreather • Goredragon • Goreslingus Rex • Greater Pricklepine • Grimwing • Guardians • Lackwit • Lightwing • Loafer Dragon • Piranha Hermit Dragon • Popdragon • Pricklepine • Puff Nadder • Repto • Rocket-Rage • Rottdragon • Sand Rattler • Sandrazor • Screech Dragon • Serpent-tongue • Shooter • Sky Dragon • Slitherfang • Slitherhawk • Snare Dragon • Sticky Stealer • Storm Dragon • Swiftglider • Terrorfang • Terrorwing • Tigerbreath • Toothless Daydream • Trotterdragon • Underground Tail-Hunter • Unknown Dragons • Vampire Ghouldeath • Vultureclaw • Water Dragon • 'X' Dragon • Yellow Vampire

Doldrum

References

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