What is truly appalling here is the claim that the video had been reviewed by humans, who had determined that birdsong was copyrighted music (although the birds ought to be flattered by that), and, as such, Rumblefish is either lying (about having looked at all), hoping to make a quick buck, or criminally incompetent. I wouldn't be surprised if Rumblefish was trying to make a buck or two off of ads here, but I'm guessing that that's their standard response, and they hope whoever made the video will give up.