Ant Moat and Nectar Shade Combination How to keep ants off hummingbird feeders, and increase the freshness of nectar? The Carousel Ant Moat and Nectar Shade is an attractive, whimsical solution for ending the incessant ant traffic around hummingbird feeders, and nocturnal earwig visits that often result in these insects becoming trapped in bee guards or drowning in nectar. Furthermore, this moat will slow down nectar spoilage by sheltering the bottles from the heat of the sun and the rain. Simply hang above the hummingbird feeder, and keep filled with water. The Ant Moat and Nectar Shade Combination is at once functional, attractive and!