It's a fantasy role-playing game.

DM: You are Keyleth, a half-elf druid . You are the member of the famous group of adventurers. Previously, When the pair reaches the outskirts of the walls, Scanlan casts Invisibility on them both. Now unable to see the eagle he's riding on, Scanlan holds her tightly around the neck.
DM: -- human physiology. You get two fistfuls of feathers. And you really don't want an eagle to buck you angrily at this height. I don't think you have Featherfall so that wouldn't go well. Looking over Whitestone, you can see outside of the city there are some areas where the trees are carved out, and there is farmland set up specifically to grow food and to till to maintain sustenance for the people that live there. You can see that there's a small area that's also being cut for timber. Not a perpetual thing, but the wood here is, you've heard previously, one of the major exports here is very high-quality timber from this type of tree that is used for very exquisite woodcraft and furniture. So that's one of the major exports of Whitestone as well as the quartz from the mines itself. There are people in the city, but sparse. Make a perception check.
Player: Can I also make a perception check?
DM: You may.
Player: With my eagle vision?
DM: (singsong) You may.
Player: 14, so that's 24. And I have Keen Sight, which means I have advantage on all perception checks.
DM: Yes, you do.
