(been reading the 2e monster entries lately and had some ideas)

Green Dragons: 

the tyrants of the woods, and evil landowners of dragons. Used in many political cartoons to represent nobles who put unfair hunting restrictions on peasants.

Green dragons are very protective of their forests, not as guardians of nature but in the manner of owner of a prized garden. The fact they can be reluctant to use their chlorine based breath weapon in fear of causing splash damage to their precious vegetation is well known and exploited by their enemies. In fact, many of the spells passed down and learned by green dragons are those concerned with healing plants or encouraging their growth.

Green dragons and bronze dragons are the two chromatic and metallic dragons most likely to interbreed or even very rarely form long-term bonds with each other despite their very different outlooks on life (and on cruelty to animals).

The long term bonds mainly happen when a coastal living green dragon prizes protecting their territory over engaging in cruelty; a task well the bronze dragon is well suited to assisting. The fact that bronze dragons tend to only actively hunt aquatic non-tetrapods also helps the rare arrangements as the two do not compete for game.

The hybrid spawn of bronze dragons and green dragons known are generally not as outright murderous as but their chromatic parents are known to be, but otherwise there is no obvious pattern to

Of the three best known individuals on record,:

One has set up terrifyingly convoluted extortion schemes for ships and travellers passing near its territory, creating bizzare dangers with its magic that only it knows how to get past without harm.

One has set itself up as a cruel avenger of those who abuse wildlife.

The most well known of all however, is a scholar by the the name of Tytrek who has settled in a submegerged forest created as a result of a dam created under a human-dwarf partnership. Tyrtek has used magic to keep the various plants alive under their submersion and is working on a long term project to magically alter the biology of the plants and create a self-sustaining true “underwater forest”. She is known to pay quite handsomely for any writings of magical research that might help her in her endeavors.

More dragons below

Forest Linnorms and Green Dragons

Green dragons never forest linnorms. Though the forest linnorms eccentric hatreds could possibly be tolerated until the Green dragon gets bored and backstabs them (or until it the linnorms homicidal mania interferes with the green dragon’s machinations), forest linnorms tend to be even greater egomaniacs than green dragons.

Forest linnorm’s strange obsession with destroying all they consider “beautiful” (a rough translation from a concept unique to their language, but it is mainly anything with aesthetics in high regard with humans or elves) also puts them at odds with green dragons who particularly prize artificial objects of fine craftmanship. (And is a reason why many think it is not a natural creature but created in primal times by an attempt to tinker with the genetic memory of dragons create a dragon with an inborn hatred to particular species of humanoids. Similar speculation surrounds the sea linnorm which oddly eats only land animals and are hostile to only intelligent land races.)

A war between a green dragon and a forest linnorm is a terrible thing for the inhabitants of a forest. A sorcerer king versus a natural assassin, with any animal or person at risk of becoming a playing piece in the conflict.

Still, though they cannot coexist together, matings do occur. In all cases it was a male linnorm and a female green dragon, as male forest linnorms travel to find mates.

The common psychology of such offspring is not yet well known, as they are terrifyingly stealthy, so its not clear how much “baggage” they inherit from their father. What is known is they prefer to rule their domains from the shadows unlike the more brazen green dragons. Those that inherit more of their father’s body type may end up living in denser patches of the same forest as their mother.

Amber Dragons: The sap suckers

Not the most glamorous or revered of dragons, but a commonly used mascot for various syrup companies

Amber dragons, for those not in the know, are adapted to feeding on the fluids of trees by piercing trunks with their beaks. They are omnivorous and feed of many other sources of food as well, but their jaws are not well adapted to catching prey . Strangely, like a shark, their teeth are made of cartilage rather than bone.Truly one of the most unusual dragons, they are wanderers that keep no hoard and make no lairs.

Green dragons hate amber dragons, considering them “squatters” and “vagabonds’ difficult to root out, and have no respect for a dragon that lives as a parasitoid of non-sapient inanimate organisms.

Amber dragons meanwhile use the same shape-shifting abilities they use to navigate dense forests to avoid green dragons unless they feel like fighting.

Amber dragons normal courtship practices are unknown, but they have been known to hybridize with forest linnorms. They tend to be more emotionally stable than amber dragons and lacking the destructive obsession of forest linnorms . .Many elves hope the hybrid vigor of the resultant spawn could eventually lead o them outcompeting forest linnorms. This might actually be possible; even though the hybrids often occupy different environmental niche they can still come into conflict with the territorial linnorms.