1) Inspect the rubber stopper. Make sure that the rubber stopper is in good condition and not damaged or torn. If it is damaged, replace it with a new one.
2) Lubricate the rubber stopper. Apply a small amount of petroleum jelly or vegetable oil to the rubber stopper. This will help to create a seal and prevent the nectar from leaking out.
3) Tighten the rubber stopper. Make sure that the rubber stopper is tightened securely in the glass globe. You may need to use a wrench or pliers to tighten it properly.
4) Test the feeder. Once you have made these adjustments, test the feeder to make sure that the nectar is no longer leaking out. Fill the feeder with water and let it sit for a few hours. If the water does not leak out, the feeder should be ready to use.
Here are some additional tips for preventing nectar from leaking out of a glass globe hummingbird feeder:
* Hang the feeder in a shady spot. This will help to keep the nectar from evaporating too quickly, which can cause the rubber stopper to dry out and crack.
* Clean the feeder regularly. This will help to prevent the growth of mold and bacteria, which can also cause the rubber stopper to deteriorate.
* Replace the rubber stopper every few months. This will help to ensure that the feeder remains in good condition and does not leak.