The Perky-Pet® Mason jar wild bird waterer offers fresh, clean water to attract a larger variety of birds while adding a rustic look to any bird lover's yard. The blue color of this bottle is reminiscent of vintage blue glass canning jars used in the 1800's. The waterer is simple to fill and clean, just unscrew the bottle from the base, fill with water, and screw the base back into place - it's that easy. If you want to attract more birds to your yard then the Perky-Pet® wild bird waterer is for you. Water is an essential element for attracting birds. By adding water to your offering along with a food source, you’ll attract a larger variety of birds including birds that don’t eat seed such as the popular bluebird, swallow and warbler.