Wyvern

Wyverns resemble true dragons, but are much smaller and lack the forelegs of their larger kin. They have sharp talons, and crocodile-like heads with red or orange eyes. Located in their long, flexible tails are deadly, poisonous scorpion stingers. They also have very large wings. Unlike true dragons, wyverns do not have breath weapons.

Ecology
Wild wyverns make their homes in caves in cliffs or mountains overlooking forests, jungles, or even plains or deserts. However, the wild wyvern has been hunted into almost non-existence by the high elves and only the "domesticated" ones remain. They live in relative captivity in similar environments, though exclusively within the walls of high elven fortresses.

Wild wyverns are usually solitary, living by themselves or with a mate and/or young, but occasionally gather together into flocks in order to hunt if game is sparse. Some wyverns do have the treasure hoarding habits of true dragons, and acumulate such wealth in their lairs, while other wyverns don't. Wyverns can speak Draconic, though poorly.

Though incredibly aggressive, only young wyverns attack their own kind, and that is usually to show dominance or establish territory. Older wyverns, despite their beastly nature, solve disputes, fights and arguments in non-violent, unknown ways.

Combat
Despite supposedly being stupid, Wyverns are rather deadly and cunning in combat. They prefer to always be in flight, and take any opportunity to take flight if not doing so already. While in flight, wyverns can use their teeth and stingers, but prefer to swoop down, grab their prey and sting them with their deadly venom. Wyverns are careful to be silent when flying, and to keep their shadow unseen. This gives them the benefit of stealth if the foes are unaware of the creature. Wyverns eat the remains of those they kill, if possible, sometimes gorging themselves past the point of good judgement.