*sighs* Yes, the Aves are slaves. Saida is just naturally kind to them. The other quetz range from indifferent to hostile from what we've seen. And there is more evidence still in the village. Slavery to the quetz is part of their culture. It doesn't stop the Aves from being treated like garbage by every quetz BUT Saida. Of COURSE they're going to like her. She doesn't blast them to ash every time she gets in a pissy mood.
The Kobold tribe seem a little more, um, independent, though I suspect strongly they're looking for anything shiny to take back to their master and Roko has his hoshi no tama...
This'll end well. At least Virmir didn't say, "Saida is helping."