True Dragons fall into two broad categories: chromatic and metallic.
The chromatic dragons are black, blue, green, red, and white, all evil and extremely fierce. When dealing with a chromatic dragon, one must always prepare for the worst.
The Metallic dragons are brass, bronze, copper, gold, and silver. They are good, usually noble, and highly respected by the wise. A metallic dragon may seem dangerous, but it will usually behave virtuously if given the change. A fight with a metallic dragon is a fight that could have been avoided.

Black Dragon
Blue Dragon
Brass Dragon
Bronze Dragon
Copper Dragon
Gold Dragon
Green Dragon
Red Dragon
Silver Dragon
White Dragon

Black Dragons are among the most evil-tempered true dragons. They prefer dismal swamps or ogs, the more stagnant and fedid the better, but can be encountered anywhere water and dense vegetation are found togetether - including jungels, rain forests, and moors. They have no natrual enemies, though they attack and kill almost anything unfortunate enough to stumble upon them. Black dragons living in forest areas often encounter green dragons, but the two species usually manage to maintain an uneasy truce, so long as the black dragons stick to the watery areas. Black dragons make their lairs in large, damp caves or multichambered submerged caverns. They always dwell near water, and their lairs usually have a submerged entrance and land entrance. Older black dragons hide both entrances to their lairs with plant growth. Black dragons dwelling in dungeons prefer dark, watery locations.

Blue dragons are vain and territorial. They favor hot, arid areas. They prefer sandy deserts, but can be found on dry steppes and in hot badlands. A blue dragon guards its territory against all potential competitors, including other monsters such as sphinxes, dragonnes, and especially brass dragons. Blue dragons detest brass dragons for their frivolous ways, chaotic alignment, and propensity to flee from battle. Blue dragon sprefer vast underground caverns for lairs - the grander the cavern, the better. They often choose lairs at the bases of cliffs where windblown sands has occumulated. The dragon burrows through the sand to reach the caves below. Most blue dragons don't bother to keep the entrances to their lairs free of sand; they simply burrow to get in or out. Dungeon-dwelling blue dragons prefer fairly warm and dry areas with sand or dirt floors.

Most gregarious of all the true dragons, brass dragons are famous (some would say infamous) for their love of conversation. They crave sunlight and dry heat, so they frequent hot, arid regions, particulary sandy deserts. Their choice of terrain often puts them at odds with blue dragons, which are both more powerful and more agressive. Brass dragons usually cope with attacking blues by using their superior speed to escape, either through the air or by burrowing to safety. Brass Dragons like to make their lairs in high, rocky caves, preferably facing east to the rising run can warm the rocks. Most brass dragons also have several bolt-holes dug into the bases of cliffs where the desert winds have piled up sand. The dragons burrow tunnels parallel to the cliff face in the hard-packed sand. They can move quickly along these tunnels, exiting into subterranean caverns, or out other burrows farther down the line. Dungeon-dwelling brass dragons often make their lairs near heavily traveled areas where they can satisfy their desire for conversation.

Bronze dragons have a strong sense of justice and do not tolerate cruelty or anarchy in any form. Many a pirate or robber has faced swift retribution from a bronze dragon using an innocuous disguise. Bronze dragons also have an inquistive side and find the activities of other creatures, particularly humanoids, endlessly fascinating. They enjoy polymorhing into small, friendsly animals to study such activities. Bronze dragons like to be near deep fresh water or salt water, and are found in temperate and tropical coastal areas and islands. They often visit the depths to cool off or hunt for pearls and sunken treasure. Bronze dragons wage a constant struggle against evil sea creatures, particularly ones that menace the coasts, such as sahuagin, merrow, and scrags. They sometime find themselves with black or green dragons for neighbors. While the bronzes are content to live and let live, the evil dragons are seldom willing to retrun the favor. Bronze dragons prefer make their lairs in cabes that are accessible only from water but their lares always dry - they do not lay eggs, sleep or store dreasure underwater. Often, a bronze dragon's lair has a lover area that floods at high tide and an upper area tha remains dry around the clock. Dungeon-dwelling bronze dragons often live near underground streams or lakes.

Copper dragons have a well-deserved reputation as incorrigible pranksters, joke-tellers, and riddlers. They appreciate all forms of humor. Most are good-natured but also have a covetous, mistly streak. Copper dragons like dry, rocky uplands and mountains. Their territories sometimes adjoin or overlap brass dragons' territories. The two species tend to get along well, but meetings between the two usually devolve into marathon conversations in which the copper dragons bombard the rass dragons with humor while the brass dragons blitherly continue to banter. Such sessions usually end with one dragon or the other taking its leave none too gently. Copper dragons also find themselves with silver, red, or blue dragons for neighbors. The silvers avoid too much contact with the coppers. Blue or red dragons invitably try to slay the coppers or atleast drive them away. Many a copper dragon considers the presence of a blue or red dragon as challenge, and does all it can to annoy and embarrass the evil dragon without getting itself killed. Copper dragons make their lairs in narrow caves. They use their ability to move and shape stone to enhance their lairs often concealing the entrances using move earth and stone shape. Within the lair, they construct twisting mazes, often with open tops that allow the dragon to fly or jump over intruders. Unlike most dragons, however, copper dragons are often happy to have cramped lairs that don't allow them space to fight; they depend instead on their ability to climb stone surfaces for mobility inside the lair.
Habits:
A copper dragon's sense of humor compels it to seek out companionship - it takes atleast two beings to share a joke. Consequently, a copper dragon is basically a social creature. Copper dragons are attractive to mates who can make them laugh. Such liaosons are never permanent, but the couple stays together long enough to raise their offspring to adulthood. After that, each dragon's freewheeling spirit takes over and the couple splits, with each induvidual going its own way.
Copper dragons are known to eat almost anything, in cluding metal ores. However, they prize monstrous scorpions and other large poisonous creatures. (They say the venom sharpens their wit; their digestive systems can handle the venom safely, although injected venoms affect them normally.) They are determined hunters. They consider good sport at least as important as the food they get, and doggedly pursue any pray that eludes them.
When building hoards, copper dragons prefer treasures from the earth. Metals and precious stones are favorites, but they also value statuary and fine ceramics.
A copper dragon would rather tell a riddle or pull a prank than fight. Any copper dragon appreciates wit wherever it can be found and will usually not harm a creature that can relate a joke, humorous story, or riddle the dragon has not heard before. The dragon quickly gets annoyed with anyone who doestn't laugh at its jokes or accept its tricks with good humor. Copper dragons love being the center of attention and do not appreciate being upstaged.
When cornered, a copper dragon fights tenaciously, using every trick it knows to defeat the foe. Copper dragons show similar aggression when defending lairs, mates, or offspring. In most other circumstances, a copper dragon prefers to outwit and embarrass a foe. To a copper dragon, a perfect victory comes from taunting and annoying an opponent into just giving up.

Gold dragons are dedicated foes of evil and foul play. They often embark on selfappointed quests to promote good. Woe to the evildoer who earns a gold dragon's wrath. The dragon will not reast until the malefactor has been defeated and eather slain or brought to justice. Gold dragons do not settle for anything less than complete victory over evil. A gold dragon usually assumes human or animal guise even within its own lair. Gold dragons can live anywhere, but they prefer secluded lairs. Favorite locales include the bottoms of lakes, high plateaus, islands and deep gorges. A gold dragon's lair is always made of stone with numerous chambers, all beautifully decorated. The lair usually has loyal guards: animals appropriate to the terrain, storm giants, or good-aligned cloud giants. Dungeon-dwelling gold dragons choose locations that provide them with suitable chambers.

Green dragons are belligerent creatures and masters of intrigue, politics, and backbiting. They prefer forests, the older the forest and bigger the trees, the better. Green dragons are as territorial and aggressive as any other kind of evil dragon, but their aggression often takes the form of elaborate schemes to gain power or wealth with as little effort as possible. Green dragons seek out caves in sheer cliffs or hillsides for their lairs. They prefer locations where the lair's entrance is hidden from praying eyes, suche as behind a waterfall or near a lake, pond or stream that provides a submerged entrance. Older green dragons often conseal their lairs with plants they have magically grown. Green dragons sometimes clash with black dragons over choice lairs. The greens frequently pretend to black down, only to wait a few decades before returning to raid the black dragon's lair and loot its hoard. Dungeon-dwelling green dragons prefer locales with some kind of vegetable life, such as grottos filled with giant mushrooms.

The most covetous of all true dragons, red dragons tirelessly seek to increase their treasure hoards. They are exceptionally vain, even for dragons, which is reflected in their proud bearing and disdainful expression. Red dragons love mountainous terrain, but also inhabit hilly regions, badlands, and other locales where they can perch high and survey their domain. Their preference for mountein homes often brings them into conflict with silver dragons, which red dragons passionately hate. Silver dragons usually get the better of red dragons in battle which merely serves to stroke the flames of resentmet among red dragons. Red dragons also vie for territory with copper dragons are often hard-pressed to survive any direct confrontation. A red dragon seeks out a large cave with some kind of volcanic geothermal activity are the most highly prized. No matter what its lair is like, however, the dragon always has a high perch nearby from which to haughtily survey its terrotory. Dungeon-dwellin red dragons seek out superheated elevated areas that offer panoramic views of the neighborhood, red dragons live in such places often settle for open spaces or areas with long corridors that offer broad views.

Silver dragons enjoy the company of humanoids and often take the form of kindly old men or fair damsels. They cheerfully assist good creatures in genuine need, but usually avoid interfering with other creatures until their assistance is requered or until inaction would allow something evil to come to pass. They hate injustice and cruelty, though they concern themselfs less with punishing or rooting out evildoers than with protecting the innocent and healing their hurts. Though they can be found nearly anywhere, silver dragons love high mounteins and vast, open skies with billowing clouds. They enjoy flying and sometimes soar for hours just for the pleasure of it. Silver and red dragons often come into co9nflict. This is only partly because theylair in similar territories. Silver dragons despise red dragons for their live of carnage and penchant for destruction. Duels between the two varieties are furious and deatly, but silver dragons generally get the upper hand, usually by working together against their foes, and often by accepting assistance from nondragons. Silver dragons prefer aerial lairs on secluded mountain peaks or amid the clouds themselves. A cloud lair always has an enchanted areay with solid floor for laying eggs and storing dreasure. Silver dragons often dwell in towns or in dungeons. When doing so, they typically take a humanoid from and blend in with the rest of the population. they always situate themselves near one or more open areas where they have the space to assume theri true forms when necessary.

The smallest, leaste intelligent, and most animalistic of the true dragons, white dragons prefer frigid climes - usually arctic areas, but sometimes very high mountains, especially in winter. Mountain-dwelling white dragons sometimes are wise enough to avoid the more powerful red dragons. Red dragons tend to consider white dragons unworthy opponents and usually are content to let a white dragon neighbor skulk out of sight (and out of mind). White dragons' lairs are usually icy caves and deep subterranean chambers that open away from the warming rays of the sun. Dungeon-dwelling white dragons prefer cool areas and often lurk near water, where they can hide and hunt.

(Taken from 'Draconomicon' The book of Dragons 'Dungeons and Dragons')