The Runner Ducks of Vergenoegd Winery

The Vergenoegd Wine Estate in Stellebosch, Cape Town, employs a unique way of controlling the snails and other pests on their vines.  The farm’s workforce of 700-800 Runner Ducks is released twice a day to enjoy this feast, and the farm has been utilising this practice since 1984.
It’s a true example of a symbiotic relationship, with the Winery yielding beautiful grapes, and the ducks literally running to work to enjoy a fabulous meal!

source: Vergenoegd Wine Estate and YouTube