Antique Glass Gravity Hummingbird Feeder has been designed with a two-part base and removable flower feeding ports to allow complete disassembly for the most thorough cleaning. The built-in perches allow hummingbirds to perch while feeding. This can increase feeding time and prolong your hummingbird viewing. Dome shape of feeder lid creates space between feeding port and nectar, deterring bees and wasps, while hummingbirds can comfortably reach nectar.