Here's a springboard setup from the "Big City Birds" pitchpack. In this episode, the birds visit some friends at the zoo and end up on the run from a crazy zookeeper who thinks they're exotic birds that flew their coop! Hilarity ensues when Finch and Maggie unknowingly hide out in the giant rattlesnake pit! Mucho props to my Big City pardner Jeff on this one for roughing out the killer rattler. Ain't it cool?
edit - tried somethin' else with the BG.