Quetzal Dragons are born with all the knowledge and experience of every Quetzal Dragon who lived before them. Despite this, their personalities are unique; they pull different lessons and personality traits from the millenia of information available to them.
The first Quetzal Dragon lived atop a mountain overlooking two civilizations for a thousand years. From his perch, he witnessed the humans below experience periods of great happiness, and great despair. This wealth of perspective is passed down to every Quetzal Dragon.
Because Quetzal Dragon have so much collective experience with humans,they make wonderful friend for people.They're able to react to minute changes in a person's mood,like comforting them at the first glimpse of worry.
Epic Form Quetzal Dragons know more about humans than a history book, and as a result are amongst mankind's greatest allies. While they cannot speak, they can predict the course of human events, and do what they can to direct us towards happiness.