First Nature Lantern Style Bird Bath and Waterer. Providing a fresh supply of water is every birder's concern. First Nature's Bird Waterer and Birdbath features a durable water reservoir that holds over 100 ounces of water, then releases it into four separate drinking pools on demand. The First Nature Bird Waterer and Birdbath can be mounted on a 4 in. x 4 in. post or can be hung with a chain (not included) and "S" hook. Simply remove the water reservoir and fill it with fresh cool water. In between fillings, both the reservoir and the drinking pools can be washed with warm soapy water. As the birds bathe in or consume the water, it's instantly replenished from the reservoir. A good water source is one that is shallow (less than 3 inches) and one that is easily refreshed. Clean, fresh water is essential to attracting and providing for a healthy wild bird population. The First Nature Bird Bath & Waterer is ideal. Give the birds in your yard a place to frolic in the water.