It's a film called "Hill Farm" by Mark Baker.
It's fairly long for a short film, running at approximately 15 minutes, but if you have some time to spare I think it's really worth watching. The animation in this film is fun, caricatured, and beautifully done. I also love the fact that there's not a word of dialogue in the short, only the sounds of the animals, props, environment and the music.
Thanks to Minkyu Lee for sharing the link with me.