This feeder has been designed to please both you and your visiting hummingbirds by offering several unique features. To make the feeder easier to fill and clean, it has a convenient wide mouth bottle. It can be filled by simply removing the cap and pouring 16 oz of nectar into the top. The wide opening will reduces messes and spills. To entice your hummers, the feeder offers four perches and soft, flower-shaped feeding ports, which have a more natural feel.