Dragon Eggs (Franchise)

In the How to Train Your Dragon universe, each dragon species has its own unique kind of dragon egg with unique properties. Due to the small importance of the eggs in the plot, there have been huge discrepancies in the appearence and characteristics of these eggs in different media of the How to Train Your Dragon movie franchise. For example, promotional material for How to Train Your Dragon lists Terrible Terror eggs to be as small as a seed, but in Riders of Berk they are as big as a fully grown chicken.

Boneknapper
A Boneknapper's Egg appears to be fragments of bone, plated and fused together to form an egg. However, it is unlikely that the eggs are made of real bone, which is similar in composition to an egg shell. Gobber's Nemesis's Egg appears to glow blue from under its shell.

Changewing
In Riders of Berk, Changewing eggs have a triangular shape, and they change colors. Changewing eggs are often mistaken for a Stone of Good Fortune, a gem that will give good fortune to whoever has it for the rest of their life. If an egg is stolen, adult Changewings will hunt around for where it is, as seen in Gem of a Different Color.

In Rise of Berk and School of Dragons, Changewing eggs appear to have wavy red stripes against a tan background and a translucent glow around it.

Deadly Nadder
In promotional material for the first movie, Nadder eggs were described as having sharp spikes that deter predators. It's picture, though, shows a smooth blue eggs with no spikes whatsoever. The egg provided in the promotional material is similar to that in School of Dragons.

In Rise of Berk the Nadder eggs has a somewhat irregular form with an obvious scales pattern and visible spikes. They come in a variety of colors.

Death Song (Slithersong)
The eggs of Deathsongs or Slithersongs in Rise of Berk are flamboyant oval-shaped eggs. They have a colourful core and a translucent white covering over it. Deathsong eggs come in a variety of colours. They appear to have wavy, curved stripes on it and some spots, similar to some butterfly wings.

Fireworm
In Rise of Berk, the Fireworm Egg has an obvious scale pattern and small spikes protruding from its sides. Slightly larger ones jut out from the top. Their eggs are normally orange or red in color.

In School of Dragons, the egg also has a visible scale pattern. The base of the egg is orange while the other parts of the egg is yellow.

Flightmare
In Rise of Berk, the eggs are normally in some shade of blue. They are oval and is surrounded by what seems to be the paralyzing mist produced by the adults. It could possibly protect the egg from potential predators.

In School of Dragons, the Flightmare Egg is a regularly shaped oval which is light blue in colour. The middle appears to be glowing brightly.

Grapple Grounder
In Rise of Berk, Grapple Grounder eggs are red. They have a few large white bumps that stick out from it. The scales can be seen on it clearly.

Groncicle
In Rise of Berk, Groncicle eggs appear to be a oval shaped egg with large ice spikes protruding from all over the egg. It is unclear if the 'ice' are real ice or other substances for defense or ornamental purposes.Their eggs are one of the few eggs with geometrical shapes and are spiky.

Gronckle
In promotional material for the first movie, Gronckle eggs are described as the smallest of all the species, barely larger than a marble and they bounce around like jumping beans. They are brown with a rough surface.

In Gift of the Night Fury, however, they are big enough to be held with two hands, with shells of a thick, lumpy, gray-blue ceramic. They hatch by exploding violently. (As eggs typically hatch by action of the young within, this explosion may be the result of the baby Gronckle's first lava spit-up, producing sufficient internal heat and pressure to break the tough shell.) The mother Gronckles usually contain this explosion by rolling the eggs into water prior to hatching; the young instinctively swim upward to rejoin her. The eggs in Rise of Berk and School of Dragons look similar to these. However, those in Rise of Berk come in a variety of colours.

In the Book of Dragons short, they appear to be nested on top of a couple of rocks. They are lumpy and brown in colour and still look rather similar to that in Gift of the Night Fury.

Hackatoo
Hackatoo eggs are brown, with darker brown stripes and covered with spines. these spines allow the eggs to stick to anything they land on. They hook onto tends to be trees and bushes.

Hideous Zippleback
In promotional material for the first movie, these eggs are described as containing buoyant natural gasses that are often mistaken for air bubbles. These bubbles give the surface of the egg a bumpy look full of craters. The eggs in School of Dragons look similar to those in the promotional material too.

In Rise of Berk, the egg doesn't have any bubbles or mark of their presence whatsoever. Instead the egghas a pattern of scales similar to the markings on the neck and back of a Zippleback. They come in a variety of colours.

Hobblegrunt
In Rise of Berk, the egg of a Hobblegrunt has several ridges that look similar to the fins of an adult Hobblegrunt. It is unknown if the fins are for protection, or just appearence.

In School of Dragons, the egg has different shades of brown and grey. They have several orange spots and a row of fin-like structures protruding from the top of it.

Hotburple
In School of Dragons and Rise of Berk, the eggs are oval in shaped. They have large, smooth bumps all over it, just like those on an adult's body.

Moldruffle
In School of Dragons, Moldruffle eggs look similar to Woolly Howl eggs, just that they have a curvy pattern that slopes downward on it instead of spots.

Monstrous Nightmare
In promotional material for the first movie, it's described that Viking children use these flaming eggs for rounds of "Viking Hot Potato"; the child with the most blisters is the winner. In this media, the eggs are brown and smooth with a pattern similar to tree bark.

In Rise of Berk and Race to the Edge, the Monstrous Nightmare eggs has a surface that looks like they were made of cloth or leather folded together, with a spotted pattern on the base. Its colors vary and they match the colors of the dragon to be born.

Night Fury
In promotional material for the first movie, these eggs are said to be laid on tops of mountains and blend in with the starry sky. The Night Fury egg is a very smooth black in color.

Night Terror
Night Terror eggs are small and dark in colour. They have a wavy, thick, dark green fin surrounding the egg and it resembles the shape of the Night Terror's Tail. They have patterns similar to its fin on its shell. The purpose of this fin is unknown.

Raincutter
In Rise of Berk and School of Dragons, Raincutter eggs are lavender with several holes and dimples all over the surface. The egg also has several pink bubbles covering it, though it is unknown what use they serve.

Razorwhip
In School of Dragons, the Razorwhip egg has numerous bands of black and sliver on it. It is a reguilar oval and appears to be rather shiny.

Rumblehorn
In Rise of Berk and School of Dragons, Rumblehorn eggs appear to have a slit that runs down vertically and separates the two halves of the egg. They have a few small holes on its base.

Sand Wraith
In Rise of Berk and School of Dragons, the Sand Wraith egg appears to have a smooth, sand brown colour and darker brown spots on it. The Desert Wraith Egg in Rise of Berk looks similar to it but more reddish in colour.

Scauldron
In Rise of Berk and School of Dragons, the eggs of a Scauldron look like water has splashed on top of a turquoise egg. This could be real water, because Scauldrons are Tidal Class dragons who live in the sea, or it could just be fake and for ornamental purposes, or maybe even poison to defend the egg from other dragons.

However, Mildew's Misery's Egg appears to be bright blue in colour, with orange stripes and dots on it, It looks similar to an Easter Egg.

Screaming Death
The appearance of a Screaming Death egg is very similar to a Whispering Death egg, because the Screaming Death is just a mutant Whispering Death. The only difference is that a Screaming Death egg is larger than a Whispering Death egg, as seen in The Iron Gronckle. The screaming death egg is white with red spots.

Scuttleclaw
Scuttleclaw eggs are a mix between blue on top and pink on the bottom. Scuttleclaw parents take good care of their eggs while they can, before they hatch into rambunctious baby Scuttleclaws.

Seashocker
In Rise of Berk, Seashocker eggs are purple with some bluish spots on the bottom. They are pointy and triangular shaped. They are thought to be laid in undersea caverns where they will be protected from danger.

Shivertooth
In School of Dragons, the Shivertooth egg is crystal blue and has tints of darker blue near the base and white at the tip. It resembles a snowy mountain as its pointy tip is white and there are white patterns that run down the tip that look like snowflakes or frost.

In Rise of Berk, the Shivertooth egg is triangular. There are ice spikes on it, similar to that of a Groncicle but the spikes all point upwards. The purposes of the spikes are unknown, but it could be a deterrence from predators or for ornamental purposes.

Shockjaw
In Rise of Berk and School of Dragons, the Shockjaw egg has a spherical shape. It is purple and have a few rod-like structures with a smaller sphere at the end that protrudes out. It has faint pink spots on it. An unknown, translucent substance surrounds it. It could be purple gel or even its bio-electricity.

Skrill
Skrill eggs are round and blue. They are covered in what looks like lightning bolts. It is unknown if the bolts are actually electric or if they are just ornamental.

Sliquifier
In Rise of Berk, these eggs are teal in colour. They have a faint glow outside. They appear to have what seems to be little protrusions that stick out from its side, covering the entire egg.

Smothering Smokebreath
In Rise of Berk and School of Dragons, the egg of a Smothering Smokebreath is brown with several, large and small, brown bumps all over it. There appears to be a strange purple color underneath the egg, but no one knows for sure what it is. The egg in Rise of Berk is more spherical than the ones in School of Dragons which appear to be oval.

Snafflefang
Snafflefang eggs are covered with green and orange blotches all over the egg's surface. In Rise of Berk, the egg has several purple spines that are probably used to fend off attackers.

Snaptrapper
In Rise of Berk Snaptrapper eggs resemble plants, with four leafy branches on top and several root like protuberances n the bottom.

In the concept art, Snaptrapper eggs have four separate looks. The first look has green vines all around it. The second looks a lot like an apple and has black spots and a sort of scaly look to it. The third looks like four leaves put together with a small vine coming out.

Snow Wraith
In Rise of Berk, a Snow Wraith's egg is pale white in colour. It has little protrusions on it and larger ones on top. They are tipped with dark brown. The egg looks as if it was carved out of wood.

Speed Stinger
The Speed Stinger's Egg in School of Dragons have appear to have a swirly pattern that radiates from the middle. It is tan in colour and has little stripes on each layer of the swirl. It resembles the pattern of some sea shells.

Stormcutter
The Stormcutter's egg is oval and has a prominent scale pattern. There is a ridge with larger scales that run down its middle.

Submaripper
In Rise of Berk, Submaripper eggs are oval and white. They appear to have a substance that looks like water that swirls around its exterior. It is unknown what this substance is and what they are used for.

Sweet Death
These eggs are normally found yellow or orange in colour. They appear to have sharp, straight edges. They appear to have an amber-coloured liquid dripping down it. It is unclear if this substance is meant for ornamental purposes or other purposes. It could possibly be the adult's acid for defence purposes.

Sword Stealer
Sword Stealer eggs in Rise of Berk have large grey scales. There appears to be six triangular plates that are fused together and a red substance can be seen glowing from underneath it through gaps. This feature is like that of a Thunderpede's egg.

Terrible Terror
In promotional material for the first movie, these eggs are said to be tiny seed like eggs that are laid in the cracks of tree trunks, and as they mature the hot egg's temperature increases.

In Riders of Berk, however, they are about the size of chickens. They have the same design as previously stated and they are shown to explode upon hatching. The egg in Rise of Berk looks similar, but it is unclear if they are of the same size.

Thornridge
Thornridge eggs look like an upside down traingle as it has a smaller base and a wider top. They have rows of fins that run down vertically. The fins closer to the top tend to be larger than those closer to the bottom. Their purpose is unknown but it could possibly be for defense purpose or just as a unique design.

Thunderclaw
Thunderclaw eggs in Rise of Berk are pear-shaped and are usually tan. They have a dark brown tip with wavy patterns that course down to the bottom of the egg. Occasionally, they come with leopard spots.

Thunderdrum
Thunderdrum eggs are blue and, when they hatch, make a "sound so loud it rattles the sky" according to Gobber. It is seen in Book Of Dragons when Bork finds one during ice fishing.

In the School of Dragons the eggs have electricity running through the eggs. The egg's core is glowing while the exterior is of a lighter shade of blue.

In Rise of Berk, the egg comes in various colours. They have a slightly more pointy top. Faint specks can be found in its middle and it appears to be rather shiny.

Thunderpede
In Rise of Berk, the Thunderpede egg is a dark brown and rough spherical egg. They look like regular shaped rock. The base of the egg appears to be cracked and a reddish glow that resembles lava can be seen from below the fragments of shell.

Tide Glider
The Tide Glider Egg in Rise of Berk and School of Dragons are blue. They have a blue core and what seems to be a translucent blue shell that surrounds the core. There are specks of white in the egg. However, the egg in Rise of Berk appears to be more spherical, while the ones in School of Dragons take on a more oval form.

Timberjack
In Rise of Berk. these eggs look like they have been formed with layers of shell from the base that are folded up to the tip. Its shell is segmented vertically and the tip is pointed. As it has a wider base, it resembles a pear in terms of its shape.

Typhoomerang
In Rise of Berk and School of Dragons, Typhoomerang eggs colour depends on what colour the dragon will be. For example, if the egg is blue, then the baby would be a blue Typhoomerang. These eggs are protected really carefully by the mother. The egg of a Typhoomerang strongly resembles the planet Jupiter, particularly the brown/orange ones as it has stripes that resemble the pattern of wood on it.

Whispering Death
In the series and in School of Dragons, these eggs are sharp and deadly and are hard to find because they are hidden in the caves of the Whispering Death. The eggs are in a rock sort of shape and in a dark colour with even darker spots you may find this egg in School Of Dragons and you could hatch it.

In Rise of Berk, they looked as if encrusted in a translucent crystal. They have jagged edges and a dark swirl in its middle. This dark swirl could possibly be the curled up embryo of the baby Whispering Death.

Windstriker
In Rise of Berk, the Windstriker's egg looks like a bean. It is teal and has yellow stripes and several curved hooks on it.

Woolly Howl
In Rise of Berk and School of Dragons, the eggs are oval and looks somewhat like regular bird eggs. They are rather plain, normally found pale brown or tan. They have patterns that look like tan spots packed closely together on their shell.

The Snoggletog Wraith egg in Rise of Berk looks similar to the Woolly Howl egg. However, they are white in colour and has a neat red bow tied on it. They are probably very rare and hatch in fall as Snoggletog Wraiths, a rare breed of Woolly Howls, only appear in winter.