There's a bird in my kitchen!

Somehow a bird got into our a/c duct this morning. We're in our kitchen doing our school stuff and we heard this really strange noise. It's in our kitchen vent and apparently can't find it's way out. I don't have a clue how he got in there. It keeps fluttering around and the noise is quite annoying. This could get interesting if the a/c comes on or if it dies or something. Poor bird.