-nods- There will be caves. I'm actually looking for good pictures right now, stuff that fits with the territory. That's going to be where they den. Probably going to have several different sites they den in around their territory, for various reasons like making sure they don't overhunt certain areas or moving to a fertile/safe place for kip raising, etc.
Thundercloud is like Steelspark. If fact if Mosi and Spark work out there might be some jealousy from Thunder, but only at first. He's got a slightly more relaxed air about him, like he's never bothered by things, versus Spark's quicker temper, but he's just as tough as she is. More so, since she'd never follow someone weaker than her. He's kind of.....withdrawn-seeming? Like if Spark brought Mosi to Thunder to ask permission to join the pack he'd sort of dismiss Mosi, tell Spark he's her responsibility to look after since she brought him in. He's kind of the type that would just appear and talk a little bit, a comment or two, and each time they come away from such an encounter you'd realize more and more is being shared and learned, just in a way that isn't totally obvious. One of those people that your first impression probably isn't good, but the more you see the more you realize your first impression was incorrect. He'll definitely defend members of his pack, and while he'd be serious about making Spark look after Mosi at first he'll also take responsibility as an Alpha if something comes up that Spark can't handle. It's almost like there's no fuss with new members, they're just accepted as though they've been there the whole time. If that makes any sense.
As far as the general feel, it's just a "this is our land" sort of pack. Where they live is tough on your own, so you have to band together to thrive. They're very family-oriented. You mess with one, you mess with them all. Kind of like kicking a wasp nest; not recommended lol. Right now they're about their members being able to look after themselves since it's a small pack. Not just strength, but smarts. Don't take on dangerous prey alone, know the dangers of the land. Look out for each other. They like to hunt in groups when possible, to take down big prey with less chance of injury. They don't mind personalities so much as mental state. If you act silly that's okay, as long as it doesn't hurt anyone, but if you
are silly (like doing stupid things and never seeming to learn) then you're endangering the safety of the pack and probably not suited for their territory anyway. They do prefer members be physically strong, but that's because a weak or crippled Fume would struggle to thrive in their territory. Not to say that if a member of the pack was crippled or born weak that they'd reject that member; they always keep an eye out for each other. They'll find roles for Fumes like that so they can still be useful, just they'd rather not have to do that if possible until they're larger.