"watch the birdie"

I threw my bike over my shoulder and while I was going out the door I heard scratching and tiny foot shuffles in the wall above the door frame. I went out and closed the door, then pounded on the wall for a bit (this is a standard test to identify the genus and species). Too bad the scratching stopped before I could identify the animal. Oh well. In the glass I saw a reflection of a small bird, flying back and forth. "He's either practicing approaches, or that isn't a reflection."

It wasn't a reflection. "Cool, there's a bird in the house. I should take some pictures." Really, though, I should have let him out before he pooped all over. Twenty in three minutes?