During the day there's usually a lot of clatter from his keyboard. He types pretty fast, especially when he's rewriting code. So I can always tell, even though my back is turned, when the hummingbirds are feeding here, because the tapping stops. There isn't much time for me to turn, and even if I do, I might frighten the bird away, so I try to see using the reflection from the "No Place Like Home" Smithsonian poster over my monitor. I get plenty of detail, but not much color.