I heard a rumor that in Gitmo during the Cuban Boatlift 1994-5, when the outdoor movie was subpar....some people would put a bottle Red Stripe beer on the concrete and banana rats would come out and drink it up. Funny to watch. (I never miss used any of my beer in that manner.)
I've heard that robins also wind up drunk on fermented apples. It must be a helluva problem to wake up early to sing that morning song with a hangover.