Perky Pet Oriole Feeder 32 Oz Patented bee guard - lets birds feed, keeps bees out and built-in ant moat. Plastic construction. Has a 360 degree perch with integrated orange slice holders which makes the feeder irresistible to orioles. Includes free oriole identification chart. Exclusive, two-position perch adjusts to feed all varieties of orioles. Removable top - easy to fill and clean.