A South African vineyard employs 1,000 ducks for a very important job

The ducks who live at South Africa's Vergenoegd Wine Estate are not your average fowl. They spend their days eating snails and other vineyard pests to keep things tidy.

The flock is a special breed called Indian Runner Ducks. They stand erect and don't fly, unlike most ducks. And they love snacking on pests, making them perfect for their job at the vineyard.

Vergenoegd is home to just over 1,000 birds.