Do birds ever chirp for nothing? They chirp to mate, or chirp to warn, or chirp to whimper in pain ... but those all have function. Do they ever chirp just because? Just for no reason at all, chirp chirp chirp? If they do, then that's what these birds outside my office window are doing. More than likely, they are just laughing at me for being inside on a lovely Friday evening. [sigh]