Audubon NA32321 Hopper Style Bird Feeder with Butterfly AccentsA large capacity hopper style feeder holding up to 4 pounds of mixed seed. Constructed of durable powder coated steel, the rust proof roof is made of copper plated aluminum; this feeder will last for many years. Moving the the roof lock lets the roof lift easily for filling and cleaning, while seed level indicator window show when feeder is empty. The removable perches provide access for larger birds and are a unique added feature. Overhanging roof