The Highway Nine Bird Sanctuary is a bird sanctuary in Springfield.
Marge wanted to go on a holiday here instead of Itchy & Scratchy Land. However, it wasn't as peaceful as Marge would have expected, as all of the birds attacked the visitors. It is implied that the birds frequently attacked the visitors because they wanted birdseed, as when the birds proceeded to undergo one of their riots, Hans Moleman proceeded to call for a bag of birdseed. They had installed a high up bird feeder shaped like a diner.