The Alpha Were Golden Eagle leading this group of Avians had not swooped in with the rest of his squad. When all of Jake's companions were being ejected from the formation by these monsters, he and three other Werebirds of prey had stayed back, overseeing the assault from their high position.
The pupils of their black-rimmed orange eyes were fully dilated, taking in as much information as they could. Arms crossed, they watched as Jake and Ruby coldly exterminated the rest of the Avians with nightmare-like brutality and zest.
One might wonder why they didn't help their subordinates, but first it had to be understood that these moronic Avians and Werebeings didn't have much in common. In Laudarkvik, these Avians were just expendable cannon fodder.
In the larger Werebeings family, the Avians included, strictly speaking, all the sapient humanoid birds under their control, but there were several rungs among them.