Jelly that is exposed to the elements quickly spoils and molds, which is bad for your birds. The Perky Pet Oriole Jelly Feeder has an inverted jelly jar, ensuring that your jelly is kept fresh and covered. The 32 oz. jar can also be interchanged with most standard jelly jars. The built in stirrer allows the perfect amount of jelly to be dispensed into the tray with just a turn of the knob. Orioles love to perch while they feed. This jelly feeder features a large circular feeding tray with a wraparound perch, so your orioles have plenty of room to feast! Orioles are known to be attracted to orange, the tray vibrant hue is sure to catch the eye of passing orioles and draw them to your yard.