If your yard is fortunate enough to have an abundance of hummingbirds, then the Perky-Pet 24 oz. Glass Top Fill Hummingbird Feeder is the feeder for you! With its large 24 oz. nectar capacity, youll keep the hummingbirds fed and have to refill less often. The wide mouth opening and patent pending top fill technology makes filling easy. Simply remove the lid, pour in the nectar, and youre ready to feed the hummingbirds. No inverting necessary!