In a diverting use of academic resources, researchers at the Oregon Health and Science University offered some zebra finches alcohol to see if they also sounded like boozy clowns when they tried to sing drunk.
Of course they did, because like your best friends and your casual acquaintances and other people at the karaoke bar, they are nothing but animals trying to have a good time and express their feelings.
Another fact the scientists learned in this important experiment is that zebra finches don't hate booze: Researcher Christopher Olsen told NPR, "At first we were thinking that they wouldn't drink on their own because, you know, a lot of animals just won't touch the stuff. But they seem to tolerate it pretty well and be somewhat willing to consume it." Fowl and humans: birds of a tipsy feather.