Hawks
I used to work in the top floor of a ten-story office building in San Mateo, CA, one of a pair. The buildings are isolated and have signs on the outside of the top floor. California red-tailed hawks hang out on the signs, sometimes roosting. They tour their different perches over the weeks to avoid habituating the food animals (squirrels, Cali desert hares). Every few weeks one shows up at the building sign. Once there were two, swooping around each other. They may have been courting, or fighting over the perch.
The buildings are modern, covered with shining gold windows. The hawks can't see inside, and assume it's just a cliff face with nice wind deformations to surf. You're in the conference room doing powerpoint on the screen and saying "customer", and this... thing... cruises past the window less than 100 feet away. It's 3 ft. across with talons bigger than your hand. It's just stunning. From above (you never see this perspective) it's mottled gray and the feathers poking forward from the wing twitch around constantly adjusting. But you were once a monkey in a tree and it can keep its distance.
The buildings are modern, covered with shining gold windows. The hawks can't see inside, and assume it's just a cliff face with nice wind deformations to surf. You're in the conference room doing powerpoint on the screen and saying "customer", and this... thing... cruises past the window less than 100 feet away. It's 3 ft. across with talons bigger than your hand. It's just stunning. From above (you never see this perspective) it's mottled gray and the feathers poking forward from the wing twitch around constantly adjusting. But you were once a monkey in a tree and it can keep its distance.