I was working outside near the duck run, when I heard them start making a commotion. As I approached, I heard squealing that I didn't think would be coming from a distressed duck. It wasn't -- they were playing a game of "Let go my Eggo" with a live vole. After a couple of minutes running around like something from a Benny Hill sketch, the "lucky" duck swallowed her prize, the tail going down real, real slow. Gross but highly amusing!