In California Vineyards, Owls are Replacing Toxic Chemicals to Help Protect Vines

Clusters of wine grapes are on the vine ready for harvest in Napa Valley.

About 80 percent of the winegrape growers in California are now using barn owl nest boxes in order to reduce the rodent population in their fields. (Image: Michael Warwick via Dreamstime)

The Amazing Volcanic Vineyards of Lanzarote