Barn owls have long been one of the secrets to Napa Valley’s world-class wines. Rather than relying on chemicals and pesticides, winemakers work with owls—nature’s best pest control—to ensure that the best grapes make it to your wine bottle without rodent interference. Wildlife biologist Carrie Wendt has spent years learning how these majestic nocturnal creatures can have productive, working relationships with winemakers.

Learn more about this sustainable, eco-friendly alternative to poisons from Great Big Story: The Secret Saviors of Napa Valley’s Vineyards.

Next: 1,000 Indian Runner ducks are a smart alternative to pesticides and The Goat Brigade: Preventing Wildfires in Southern California.

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