Grabon
As a youth, awandering from territory to territory before he met Heron and even after, do you think Grabon was a polite guest, following most of the rules of courtesy? Did he get invited into the territory nest often?
I can see him aggressively demanding information, debating the territory dragon’s rules and challenging his reasons. Like any intelligent youth, he needed to test his strength, his manipulation skills, deception, and even his beliefs.
In my previous life, I was a teacher and many adults found intelligent kids to be a pain, because they questioned and argued about everything. I always enjoyed when students were difficult and challenging rather than compliant and beaten down in submission. I can imagine that Grabon would have been especially challenging, consumed with his own interests and utterly dismissive of anything he was not interested in.