Glass watering can for potted plants BIRD Dimensions: Height: 35.7 cm Width: 10.2 cm Depth: 6.1 cm. Weight: 0.055 kg. Glass, self-watering soil humidifier for watering plants in the shape of a bird. The product is especially helpful during the holiday season, as well as during trips. It can also have a decorative function. No electricity required. How to use: The inside of the birds should be filled with water and then the tube should be stuck into the soil of the potted plant. The water will be dosed gradually over about 2 weeks. After this time, the bird should be replenished with new water.