1: Preventing mold in hummingbird feeders is essential for the health of the birds.

2: To prevent mold, clean feeders regularly with a mixture of water and vinegar.

3: Ensure feeders are completely dry before refilling with fresh nectar.

4: Choose feeders with removable parts for easy cleaning.

5: Protect feeders from direct sunlight to prevent mold growth.

6: Change nectar every 3-4 days to prevent fermentation.

7: Avoid using red food coloring in nectar, as it can promote mold growth.

8: Monitor feeders regularly for any signs of mold.

9: By following these tips, you can enjoy watching healthy hummingbirds in your yard.