Opus Oriole Feeder Plastic 24oz Features an orange slice decor, three feeding ports with patented bee guards, three perches, patented reversing funnel cap and holds 24oz of nectar. For best results, use Perky Pet Instant energy Oriole nectar. This specially blended nectar is easy to use, requires no boiling and stays fresh longer. The clear, shatter-proof plastic reservoir makes it easy to monitor nectar levels and unscrews easily from the feeder base for quick cleaning and filling.