The Eagle Flock organization was a transformation of the Eagle Claw tribe, a Mountain Barbarian Tribe. While other tribes struggled for survival in the Mountains under Bastia's blockade, the Eagle Claw had pledged allegiance. As a result, they enjoyed the good life and no longer needed to battle nature for meager chances of survival.
Of course, their loyalty to Count Bastia was the price they had to pay.
When they were in the Mountains, they were formidable scouts. There was even a saying that spread throughout the Mountains: "No prey can escape the eyes of an eagle," and this eagle referred to them.
Perhaps the comforts of Bastia had dulled some of their vigilance from their time in the Mountains, but they were still the best scouts.
Bastia's ability to control the Mountains for many years relied heavily on the Eagle Flock, aside from the fortresses. Indeed, only Barbarians truly understand Barbarians.
