Ummm so. Yes I don't know what a lusus is entirely and I realize I'm the lone person to explain our deal. Our culture is very communal. Most that are not outcasts (such as me) belong to flocks, several who serve different roles! There are those who brood and hatch new harpies. We used to have hunters and gatherers in the past but those roles have been phased out in favor of the warriors, caretakers, and profiteers in standard flock structures. Profiteers do what you think they do, they earn resources and currency for the flock, the warriors either protect the flock or enlist in the military, and caretakers fit more nestly roles. All take part in raising hatchlings to figure out their place in the world. Outcasts are separate from all of this, and we, well. We don't follow the structure. Sometimes out fault, most times not. I was the latter, but i make due with this! I am far enough into life that I kind of have a hybrid role of profiteer and warrior, even if it's just to provide for myself. There is also, flightless culture and its differences from ours, and the Hangers that live below the islands, but I can't speak of their ways very well, especially the Hangers, they are um. More like what you'd call bats, but people too. I wish I did know more, but the hanger who is part of our session is pretty recluse.