The first time I walked up they fluttered around making sounds before settling down again. The second time I was very careful as I carried my bike upstairs, and they didn't even budge. They are amazingly tame considering my door is only a few feet away. I can stand there literally 3 feet away and they just look down at me.
But honestly, I'm not sure it's a good idea to have a nest here, if that's what's in the making. In an apartment complex, I don't think that would end well.
May I recommend Red Rocks? It's quiet and scenic. Or Bear Creek -- lots of insects.